Histoplasmosis



Histoplasmosis


Cornelia S. L. Mller, MD

Bruce R. Smoller, MD










Histoplasmosis of the tongue presented as a punched-out ulcer in this patient. (Courtesy L. Thompson, MD.)






A biopsy of histoplasmosis of the skin demonstrates numerous yeast image surrounded by a clear halo (pseudocapsule) within macrophages. (Courtesy S. Billings, MD.)


TERMINOLOGY


Synonyms



  • Darling disease, histo


Definitions



  • Systemic fungal infection caused by yeast Histoplasma capsulatum var. capsulatum


ETIOLOGY/PATHOGENESIS


Environmental Exposure



  • Exposure to soil contaminated with bird and bat droppings


CLINICAL ISSUES


Epidemiology

Jul 8, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Histoplasmosis
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