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Arch Pathol Lab Med. 1985 Dec;109(12):1109-13.

The histopathologic spectrum in Mycobacterium marinum infection.


Review of nine culture-positive cases of Mycobacterium marinum infection revealed a broad range in the histopathologic features of lesions produced by this organism. Four synovial lesions and five cutaneous infections were observed. A range of inflammatory changes were seen in both synovial and skin lesions, varying from mostly acute inflammation with suppuration to a more chronic process with numerous, well-formed granulomas. Organisms were observed in the biopsy sections of only one of the nine cases. Therefore, culture of the biopsy tissue at 30 degrees C is crucial in establishing the diagnosis. These cases emphasize the importance of considering mycobacterial infection and performing cultures even when granulomatous changes in the synovium or skin are subtle.

[Indexed for MEDLINE]

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