| acanthoma fissuratum | A fissure bordered by acanthosis developing at a site of friction by spectacle frames, usually behind the ears. (05 Mar 2000) |
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| epulis fissuratum | Overgrowth of tissue in the mucobuccal or labial fold, induced by chronic trauma from ill-fitting dentures. Synonym: denture hyperplasia, epulis fissuratum. (05 Mar 2000) |
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| acanthoma | <tumour> A tumour formed by proliferation of epithelial squamous cells. See: keratoacanthoma. Origin: acantho-+ G. -oma, tumour (05 Mar 2000) |
| acanthoma adenoides cysticum | <tumour> Multiple small benign nodules, occurring mostly on the skin of the face, derived from basal cells of hair follicles enclosing small keratin cysts; frequent autosomal dominant inheritance. Synonym: acanthoma adenoides cysticum, Brooke's tumour, epithelioma adenoides cysticum, hereditary multiple trichoepithelioma. Origin: tricho-+ epithelioma (05 Mar 2000) |
| clear cell acanthoma | A sharply demarcated benign epidermal lesion of a leg or arm with acanthosis and accumulation of glycogen in keratinocytes having pale staining cytoplasm. (05 Mar 2000) |
| Degos' acanthoma | <tumour> An obsolete term for clear cell acanthoma. (05 Mar 2000) |