Pseudolipomatosis polyposis - 16/08/11
Doi : 10.1016/j.gie.2006.01.037
| Commentary Four Greek roots (pseudes: false; lipos: fat; oma: tumor; osis: a process connoting an increase) sum to give this term embellishment. Mucosal pseudolipomatosis has been described in the stomach, duodenum, and colon. The major difference between a lipoma and a pseudolipoma is in the absence of adipocytes (ie, the absence of fat). Fat stains are consistently negative in mucosal pseudolipomatosis, they show no evidence of endothelial lining ultrastructurally, and they are negative for endothelial markers by immunohistochemistry and lectin histochemistry, excluding the possibility that they are lymphatics. It has been postulated that mucosal colonic pseudolipomatosis is an iatrogenic phenomenon resulting from the penetration of gas into the mucosa during colonoscopy; it was particularly common when hydrogen peroxide was used as a disinfectant. The current case reveals lipomatous polyps or pseudolipomas (ie, polyps that resemble lipoma, a condition of unknown cause and probably of little importance once documented). George Triadafilopoulos, MD Editor-in-Chief |
© 2006
American Society for Gastrointestinal Endoscopy. Publié par Elsevier Masson SAS. Tous droits réservés.
Vol 64 - N° 1
P. 133-134 - juillet 2006 Retour au numéro
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