Histologic Diagnosis of Inflammatory Skin Diseases

Atypical mycobacterial infections

Atypical mycobacterial infections Presentation stereotypical Age and sex Any age, but more often in young adults, particularly men and those who are immunocompromised Distribution of lesions Localized to a circumscribed site, that being the one of i…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…fungal spores in a multinucleate histiocyte. = South American blastomycosis The findings pictured at scanning magnification are typical of infection by either a deep fungus or an atypical mycobacterium. The spore of South American blastomycosis show…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

ABSCESS [L. abscessus (a going away)]: Clinically, a circumscribed collection of pus and histopathologically a localized collection of neutrophils. An abscess may form in the epidermis, both surface and infundibular, eccrine ducts, dermis, and subcu…

Histologic Diagnosis of Inflammatory Skin Diseases

Deep fungal infections

Deep fungal infections Synonyms Mycetoma Subcutaneous mycoses Dermal mycoses Presentation stereotypical Age and sex Any age, both sexes Distribution of lesions Localized or widespread; some infections favor exposed sites; internal organs sometimes…

Histologic Diagnosis of Inflammatory Skin Diseases

Leishmaniasis

Leishmaniasis Synonyms Leishmaniosis Presentation stereotypical Age and sex Young adults of both sexes Distribution of lesions Localized in Oriental sore, widespread in the mucocutaneous and post-kala-azar types, and disseminated in the anergic cuta…