Angiolipomatous mesenchymal hamartoma (angiolipomatosis) of the sigmoid mesocolon

  • Background: Primary mesenteric tumors are exceedingly rare and may thus pose a diagnostic challenge. They encompass both benign and malignant neoplasms as well as reactive and idiopathic tumefactive fibroinflammatory lesions. Method and results: A 70-year-old man who was diagnosed with sigmoid colon cancer was found to have a large non-homogeneous predominantly fatty retroperitoneal soft tissue mass on computerized tomography (CT) scan. The mass was attached to the aorta and have encased the inferior mesenteric artery and extended into the sigmoid mesocolon. Histological examination of the mass showed ill-defined lipoma-like mature fatty tissue traversed by paucicellular fibrous septa entrapBackground: Primary mesenteric tumors are exceedingly rare and may thus pose a diagnostic challenge. They encompass both benign and malignant neoplasms as well as reactive and idiopathic tumefactive fibroinflammatory lesions. Method and results: A 70-year-old man who was diagnosed with sigmoid colon cancer was found to have a large non-homogeneous predominantly fatty retroperitoneal soft tissue mass on computerized tomography (CT) scan. The mass was attached to the aorta and have encased the inferior mesenteric artery and extended into the sigmoid mesocolon. Histological examination of the mass showed ill-defined lipoma-like mature fatty tissue traversed by paucicellular fibrous septa entrapping small nerves and containing remarkably increased venous blood vessels reminiscent of soft tissue angiomatosis without evidence of malignancy. The histological features were consistent with an angiolipomatous hamartomatous mesenchymal proliferation. Conclusions: Angiolipomatous hamartoma might be histogenetically related to soft tissue angiomatosis. To our knowledge, this case represents the first well documented lesion of this type at this location and must be distinguished from other fat-containing masses, particularly angiomyolipoma, sclerosing mesenteritis and mesenteric liposarcoma.show moreshow less

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Metadaten
Author:Resit Demir, Axel Schmid, Werner Hohenberger, Abbas Agaimy
URN:urn:nbn:de:bvb:29-opus-31810
Document Type:Article
Language:English
Date of Publication (online):2012/03/23
Publishing Institution:Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Release Date:2012/03/23
Tag:Angiolipomatous hamartoma; angiomatosis; mesocolon; tumor-like lesion
SWD-Keyword:-
Original publication:International Journal of Clinical and Experimental Pathology 4.2 (2011): S. 210-214. 23.03.2012 <http://www.ijcep.com/1101005A.html>
Institutes:Medizinische Fakultät / Medizinische Fakultät -ohne weitere Spezifikation-
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Collections:Universität Erlangen-Nürnberg / Von der FAU geförderte Open Access Artikel / Von der FAU geförderte Open Access Artikel 2011

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