Colonic angiodysplasia and true diverticula: is there an association?
Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The...
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| Autor*in: |
Mudhar, H S [verfasserIn] Balsitis, M [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Science Ltd ; 2005 |
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| Schlagwörter: |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2005 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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| Übergeordnetes Werk: |
In: Histopathology - Oxford [u.a.] : Wiley-Blackwell, 1977, 46(2005), 1, Seite 0 |
| Übergeordnetes Werk: |
volume:46 ; year:2005 ; number:1 ; pages:0 |
| Links: |
|---|
| DOI / URN: |
10.1111/j.1365-2559.2005.02048.x |
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NLEJ242758460 |
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| 520 | |a Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. | ||
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10.1111/j.1365-2559.2005.02048.x doi (DE-627)NLEJ242758460 DE-627 ger DE-627 rakwb Mudhar, H S verfasserin aut Colonic angiodysplasia and true diverticula: is there an association? Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| angiodysplasia Balsitis, M verfasserin aut In Histopathology Oxford [u.a.] : Wiley-Blackwell, 1977 46(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927045 (DE-600)2006447-0 1365-2559 nnns volume:46 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2559.2005.02048.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 46 2005 1 0 |
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10.1111/j.1365-2559.2005.02048.x doi (DE-627)NLEJ242758460 DE-627 ger DE-627 rakwb Mudhar, H S verfasserin aut Colonic angiodysplasia and true diverticula: is there an association? Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| angiodysplasia Balsitis, M verfasserin aut In Histopathology Oxford [u.a.] : Wiley-Blackwell, 1977 46(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927045 (DE-600)2006447-0 1365-2559 nnns volume:46 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2559.2005.02048.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 46 2005 1 0 |
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10.1111/j.1365-2559.2005.02048.x doi (DE-627)NLEJ242758460 DE-627 ger DE-627 rakwb Mudhar, H S verfasserin aut Colonic angiodysplasia and true diverticula: is there an association? Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| angiodysplasia Balsitis, M verfasserin aut In Histopathology Oxford [u.a.] : Wiley-Blackwell, 1977 46(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927045 (DE-600)2006447-0 1365-2559 nnns volume:46 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2559.2005.02048.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 46 2005 1 0 |
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10.1111/j.1365-2559.2005.02048.x doi (DE-627)NLEJ242758460 DE-627 ger DE-627 rakwb Mudhar, H S verfasserin aut Colonic angiodysplasia and true diverticula: is there an association? Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| angiodysplasia Balsitis, M verfasserin aut In Histopathology Oxford [u.a.] : Wiley-Blackwell, 1977 46(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927045 (DE-600)2006447-0 1365-2559 nnns volume:46 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2559.2005.02048.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 46 2005 1 0 |
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10.1111/j.1365-2559.2005.02048.x doi (DE-627)NLEJ242758460 DE-627 ger DE-627 rakwb Mudhar, H S verfasserin aut Colonic angiodysplasia and true diverticula: is there an association? Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| angiodysplasia Balsitis, M verfasserin aut In Histopathology Oxford [u.a.] : Wiley-Blackwell, 1977 46(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927045 (DE-600)2006447-0 1365-2559 nnns volume:46 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2559.2005.02048.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 46 2005 1 0 |
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Colonic angiodysplasia and true diverticula: is there an association? |
| abstract |
Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. |
| abstractGer |
Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. |
| abstract_unstemmed |
Aims : To investigate the pathology of colectomy specimens, from patients presenting with lower gastrointestinal haemorrhage, who had undergone preoperative mesenteric angiography. The angiography diagnoses ranged from active bleeding of unknown aetiology to angiodysplasia.Methods and results : The macroscopic and microscopic pathology of 11 colectomy specimens was studied. All the specimens contained blood on receipt with no obvious macroscopic source of haemorrhage identified. In all cases the large bowel demonstrated diverticula with an unusual topography. These were wide-mouthed, up to 20 mm across and exhibited a partly scattered distribution across the bowel; in two cases the diverticula contained blood clot. Histology demonstrated true diverticula invested by all muscle layers, exhibiting thick-walled vessels, within the submucosa and within the muscularis propria fibres, resembling the vascular elements identified in congenital vascular malformations. The two cases that contained blood clot revealed the thick-walled vessels to have ruptured into the diverticular lumen. Histology from the background colon between the diverticula demonstrated vascular lesions fulfilling the histological criteria for angiodysplasia; these features were also represented in the true-type diverticula. Most cases showed right-sided angiodysplasia and right-sided true diverticula. However, left-sided angiodysplastic lesions were also seen in association with left-sided true-type diverticula.Conclusions : We have identified the dual pathologies of angiodysplasia and multiple true-type diverticula, and suggest a topographical relationship between these two lesions. Furthermore, we propose that the thick-walled vessels within the true diverticula are congenitally abnormal, and raise the possibility that these vessels exert local haemodynamic effects, that effectively predispose the colon to acquired angiodysplastic phenomena. |
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