[Xanthelasma of the sigmo-rectal wall].
Xanthelasma is a benign localized collection of lipid-laden histiocytes, that is usually idiopathic and immunohistochemical studies confirmed the histiocytic nature of the proliferation. It is here reported a case in the sigma-rectum, with a review of the recent literature on the argument. Although it is a well recognized entity already described in various organs, its occurrence in the wall of the sigma-rectal channel is at all uncommon. It is suggested that the lesion could be referred to a local immunological disorder, with a cell mediated mechanism.
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Cattedra di Istituzioni di Anatomia e Istologia Patologica, Università di Catania.
D000236:Adenoma / Q000150:complications; D001005:Anus Neoplasms / Q000150:complications; D005260:Female; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D012002:Rectal Diseases / Q000150:complications / Q000473:pathology*; D012810:Sigmoid Diseases / Q000150:complications / Q000473:pathology*; D014973:Xanthomatosis / Q000150:complications / Q000473:pathology*
Sullo xantelsma della parete del sigma-retto.