title: Tuberculoid cutaneous infection due to a niacin-positive Mycobacterium chelonei.
abstract: A case of cutaneous infection due to a niacin-positive Mycobacterium chelonei (previously called M. abscessus) on the dorsum of the hand of a professional cotton-classifier is reported from Hong Kong. The infection was probably directly acquired from handling contaminated raw cotton. The patient was successfully treated with combined anti-tuberculous drugs over a period of 1 year. Histologically, the skin lesion showed tuberculoid granulomas, in addition to abscesses.
mesh_terms: D000328:Adult; D006229:Hand Dermatoses / Q000473:pathology*; D006801:Humans; D008297:Male; D009164:Mycobacterium Infections / Q000473:pathology*; D009165:Mycobacterium Infections, Nontuberculous / Q000382:microbiology / Q000473:pathology*; D009539:Nicotinic Acids / Q000032:analysis; D009170:Nontuberculous Mycobacteria / Q000032:analysis; D012867:Skin / Q000473:pathology; D012874:Skin Diseases, Infectious / Q000473:pathology*; D014382:Tuberculosis, Cutaneous / Q000382:microbiology / Q000473:pathology*
chemical_list: D009539:Nicotinic Acids