Regressing atypical histiocytosis. Report of a case.
A patient with a pseudomalignant, histiocytic dermal lesion is reported. Despite a torpid course, the lesion was considered on histologic grounds by several consultants to be malignant. It appears to be distinct from previously reported pseudosarcomas or pseudolymphomas and most closely resembles a recently described condition termed "regressing atypical histiocytosis." The clinical and histopathologic features are summarized.
D006644:Histiocytes / Q000648:ultrastructure; D006801:Humans; D008206:Lymphatic Diseases / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery