Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton

Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoi...
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Autor*in:	Goller, Sophia Samira [verfasserIn] Erber, Bernd Fink, Nicola Dürr, Hans Roland Knösel, Thomas Ricke, Jens Baur-Melnyk, Andrea

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Hyperplasia of the hematopoietic bone marrow Hematopoietic islands Axial skeleton Osteoblastic metastases MRI CT

Anmerkung:	© The Author(s) 2022

Übergeordnetes Werk:	Enthalten in: BMC musculoskeletal disorders - London : BioMed Central, 2000, 23(2022), 1 vom: 12. Mai
Übergeordnetes Werk:	volume:23 ; year:2022 ; number:1 ; day:12 ; month:05

Links:	Volltext

DOI / URN:	10.1186/s12891-022-05402-w

Katalog-ID:	SPR050704176

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520			\|a Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases.
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allfields	10.1186/s12891-022-05402-w doi (DE-627)SPR050704176 (SPR)s12891-022-05402-w-e DE-627 ger DE-627 rakwb eng Goller, Sophia Samira verfasserin aut Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2022 Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. Hyperplasia of the hematopoietic bone marrow (dpeaa)DE-He213 Hematopoietic islands (dpeaa)DE-He213 Axial skeleton (dpeaa)DE-He213 Osteoblastic metastases (dpeaa)DE-He213 MRI (dpeaa)DE-He213 CT (dpeaa)DE-He213 Erber, Bernd aut Fink, Nicola aut Dürr, Hans Roland aut Knösel, Thomas aut Ricke, Jens aut Baur-Melnyk, Andrea aut Enthalten in BMC musculoskeletal disorders London : BioMed Central, 2000 23(2022), 1 vom: 12. Mai (DE-627)326643745 (DE-600)2041355-5 1471-2474 nnns volume:23 year:2022 number:1 day:12 month:05 https://dx.doi.org/10.1186/s12891-022-05402-w kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 1 12 05
spelling	10.1186/s12891-022-05402-w doi (DE-627)SPR050704176 (SPR)s12891-022-05402-w-e DE-627 ger DE-627 rakwb eng Goller, Sophia Samira verfasserin aut Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2022 Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. Hyperplasia of the hematopoietic bone marrow (dpeaa)DE-He213 Hematopoietic islands (dpeaa)DE-He213 Axial skeleton (dpeaa)DE-He213 Osteoblastic metastases (dpeaa)DE-He213 MRI (dpeaa)DE-He213 CT (dpeaa)DE-He213 Erber, Bernd aut Fink, Nicola aut Dürr, Hans Roland aut Knösel, Thomas aut Ricke, Jens aut Baur-Melnyk, Andrea aut Enthalten in BMC musculoskeletal disorders London : BioMed Central, 2000 23(2022), 1 vom: 12. Mai (DE-627)326643745 (DE-600)2041355-5 1471-2474 nnns volume:23 year:2022 number:1 day:12 month:05 https://dx.doi.org/10.1186/s12891-022-05402-w kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 1 12 05
allfields_unstemmed	10.1186/s12891-022-05402-w doi (DE-627)SPR050704176 (SPR)s12891-022-05402-w-e DE-627 ger DE-627 rakwb eng Goller, Sophia Samira verfasserin aut Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2022 Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. Hyperplasia of the hematopoietic bone marrow (dpeaa)DE-He213 Hematopoietic islands (dpeaa)DE-He213 Axial skeleton (dpeaa)DE-He213 Osteoblastic metastases (dpeaa)DE-He213 MRI (dpeaa)DE-He213 CT (dpeaa)DE-He213 Erber, Bernd aut Fink, Nicola aut Dürr, Hans Roland aut Knösel, Thomas aut Ricke, Jens aut Baur-Melnyk, Andrea aut Enthalten in BMC musculoskeletal disorders London : BioMed Central, 2000 23(2022), 1 vom: 12. Mai (DE-627)326643745 (DE-600)2041355-5 1471-2474 nnns volume:23 year:2022 number:1 day:12 month:05 https://dx.doi.org/10.1186/s12891-022-05402-w kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 1 12 05
allfieldsGer	10.1186/s12891-022-05402-w doi (DE-627)SPR050704176 (SPR)s12891-022-05402-w-e DE-627 ger DE-627 rakwb eng Goller, Sophia Samira verfasserin aut Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2022 Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. Hyperplasia of the hematopoietic bone marrow (dpeaa)DE-He213 Hematopoietic islands (dpeaa)DE-He213 Axial skeleton (dpeaa)DE-He213 Osteoblastic metastases (dpeaa)DE-He213 MRI (dpeaa)DE-He213 CT (dpeaa)DE-He213 Erber, Bernd aut Fink, Nicola aut Dürr, Hans Roland aut Knösel, Thomas aut Ricke, Jens aut Baur-Melnyk, Andrea aut Enthalten in BMC musculoskeletal disorders London : BioMed Central, 2000 23(2022), 1 vom: 12. Mai (DE-627)326643745 (DE-600)2041355-5 1471-2474 nnns volume:23 year:2022 number:1 day:12 month:05 https://dx.doi.org/10.1186/s12891-022-05402-w kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 1 12 05
allfieldsSound	10.1186/s12891-022-05402-w doi (DE-627)SPR050704176 (SPR)s12891-022-05402-w-e DE-627 ger DE-627 rakwb eng Goller, Sophia Samira verfasserin aut Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2022 Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. Hyperplasia of the hematopoietic bone marrow (dpeaa)DE-He213 Hematopoietic islands (dpeaa)DE-He213 Axial skeleton (dpeaa)DE-He213 Osteoblastic metastases (dpeaa)DE-He213 MRI (dpeaa)DE-He213 CT (dpeaa)DE-He213 Erber, Bernd aut Fink, Nicola aut Dürr, Hans Roland aut Knösel, Thomas aut Ricke, Jens aut Baur-Melnyk, Andrea aut Enthalten in BMC musculoskeletal disorders London : BioMed Central, 2000 23(2022), 1 vom: 12. Mai (DE-627)326643745 (DE-600)2041355-5 1471-2474 nnns volume:23 year:2022 number:1 day:12 month:05 https://dx.doi.org/10.1186/s12891-022-05402-w kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 1 12 05
language	English
source	Enthalten in BMC musculoskeletal disorders 23(2022), 1 vom: 12. Mai volume:23 year:2022 number:1 day:12 month:05
sourceStr	Enthalten in BMC musculoskeletal disorders 23(2022), 1 vom: 12. Mai volume:23 year:2022 number:1 day:12 month:05
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Hyperplasia of the hematopoietic bone marrow Hematopoietic islands Axial skeleton Osteoblastic metastases MRI CT
isfreeaccess_bool	true
container_title	BMC musculoskeletal disorders
authorswithroles_txt_mv	Goller, Sophia Samira @@aut@@ Erber, Bernd @@aut@@ Fink, Nicola @@aut@@ Dürr, Hans Roland @@aut@@ Knösel, Thomas @@aut@@ Ricke, Jens @@aut@@ Baur-Melnyk, Andrea @@aut@@
publishDateDaySort_date	2022-05-12T00:00:00Z
hierarchy_top_id	326643745
id	SPR050704176
language_de	englisch
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In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. 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author	Goller, Sophia Samira
spellingShingle	Goller, Sophia Samira misc Hyperplasia of the hematopoietic bone marrow misc Hematopoietic islands misc Axial skeleton misc Osteoblastic metastases misc MRI misc CT Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton
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topic_title	Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton Hyperplasia of the hematopoietic bone marrow (dpeaa)DE-He213 Hematopoietic islands (dpeaa)DE-He213 Axial skeleton (dpeaa)DE-He213 Osteoblastic metastases (dpeaa)DE-He213 MRI (dpeaa)DE-He213 CT (dpeaa)DE-He213
topic	misc Hyperplasia of the hematopoietic bone marrow misc Hematopoietic islands misc Axial skeleton misc Osteoblastic metastases misc MRI misc CT
topic_unstemmed	misc Hyperplasia of the hematopoietic bone marrow misc Hematopoietic islands misc Axial skeleton misc Osteoblastic metastases misc MRI misc CT
topic_browse	misc Hyperplasia of the hematopoietic bone marrow misc Hematopoietic islands misc Axial skeleton misc Osteoblastic metastases misc MRI misc CT
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title	Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton
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title_full	Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton
author_sort	Goller, Sophia Samira
journal	BMC musculoskeletal disorders
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author_browse	Goller, Sophia Samira Erber, Bernd Fink, Nicola Dürr, Hans Roland Knösel, Thomas Ricke, Jens Baur-Melnyk, Andrea
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author-letter	Goller, Sophia Samira
doi_str_mv	10.1186/s12891-022-05402-w
title_sort	hematopoietic islands mimicking osteoblastic metastases within the axial skeleton
title_auth	Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton
abstract	Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. © The Author(s) 2022
abstractGer	Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. © The Author(s) 2022
abstract_unstemmed	Background Hyperplasia of the hematopoietic bone marrow in the appendicular skeleton is common. In contrast, focal hematopoietic islands within the axial skeleton are a rare entity and can confuse with osteoblastic metastases. This study aimed to characterize typical MRI and CT findings of hematopoietic islands in distinction from osteoblastic metastases to help both radiologists and clinicians, on the one hand, not to overdiagnose this entity and, on the other hand, to decide on a reasonable work-up. Methods We retrospectively analyzed the imaging findings of 14 hematopoietic islands of the axial skeleton in ten patients (nine females, median age = 65.5 years [range, 49–74]) who received both MRI and CT at initial diagnosis between 2006 and 2020. CT-guided biopsy was performed in five cases to confirm the diagnosis, while the other five patients received long-term MRI follow-up (median follow-up = 28 months [range, 6–96 months]). Diffusion-weighted imaging was available in three, chemical shift imaging respectively 18F- fluorodeoxyglucose PET/CT in two, and Technetium 99 m skeletal scintigraphy in one of the patients. Results All lesions were small (mean size = 1.72 $ cm^{2} $) and showed moderate hypointense signals on T1- and T2-weighted MRI sequences. They appeared isointense to slightly hyperintense on STIR images and slightly enhanced after gadolinium administration. To differentiate this entity from osteoblastic metastases, CT provides important additional information, as hematopoietic islands do not show sclerosis. Conclusions Hematopoietic islands within the axial skeleton can occur and mimic osteoblastic metastases. However, the combination of MRI and CT allows for making the correct diagnosis in most cases. © The Author(s) 2022
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title_short	Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton
url	https://dx.doi.org/10.1186/s12891-022-05402-w
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author2	Erber, Bernd Fink, Nicola Dürr, Hans Roland Knösel, Thomas Ricke, Jens Baur-Melnyk, Andrea
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Hematopoietic islands mimicking osteoblastic metastases within the axial skeleton

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