1. [Granulomatous skin disease after an exotic injury].
- Author
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Adamicová K, Fetisovová Z, Strmenová V, Maarouf Z, Ondrejovic P, Mad'ar R, and Mellová Y
- Subjects
- Animals, Bites and Stings microbiology, Granuloma etiology, Humans, Male, Middle Aged, Mycobacterium Infections, Nontuberculous etiology, Mycobacterium marinum, Skin Diseases, Bacterial etiology, Bites and Stings complications, Fishes, Granuloma pathology, Mycobacterium Infections, Nontuberculous pathology, Skin Diseases, Bacterial pathology
- Abstract
Piranhas are feared freshwater fishes commonly found in the waters of southern Venezuela to the north of Argentina. At present this species is a favourite domesticated article of our aquarists. The authors describe the histopathologic picture of a cutaneous lesion of the right hand thumb of a 60-year old piranha keeper who was bitten by this predatory fish. A firm node with increasing soreness gradually developed in the area of the lesion, and after 7 months the symptoms of the carpal tunnel syndrome were also present. Granulomatous foci--some sarcoid-like, others with central necrosis--were permeated with fibrinoid substance. Epithelioid granuloma cells with huge incorporated multinuclear elements were covered mainly by T-lymphocytes. Ziehl-Neelsen stain did not prove the presence of diagnostic acid-fast rods. Only in some macrophages rare acid-fast spheric microstructures were present in the cytoplasm. Both the local dermatologic finding and histological examination gave evidence that the skin was infected with atypical mycobacteria--swimming pool granuloma.
- Published
- 2003