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Histoplasmosis

Foundational SciencesMicrobiologyMycologySystemic fungal infections
Organ SystemsRespiratory systemMicrobiologyFungal
USMLE® Step 1 ReviewHuman developmentMicrobial biology and pharmacologyMycologySystemic fungal infections
USMLE® Step 1 ReviewMultisystem processes and disordersMicrobiologyFungal
USMLE® Step 1 ReviewRespiratory systemMicrobiologyFungal
USMLE® Step 2 ReviewMultisystem processes and disordersBack to the Basic SciencesMicrobiologyFungal
USMLE® Step 2 ReviewRespiratory systemBack to the Basic SciencesMicrobiologyFungal

Definitions & Key takeaways

Histoplasmosis is a fungal infection caused by a fungus known as Histoplasma capsulatum. The fungus can cause severe pneumonia, mucosal ulcers, and splenomegaly. Symptoms of histoplasmosis include fever, chest pain, shortness of breath, and coughing up blood.

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Free radicals and cellular injury
Necrosis and apoptosis
Ischemia
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Atrophy, aplasia, and hypoplasia
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Pneumocystis jirovecii (Pneumocystis pneumonia)
Candida
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Aspergillus fumigatus
Sporothrix schenckii
Cryptococcus neoformans
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Plasmodium species (Malaria)
Babesia
Giardia lamblia
Entamoeba histolytica (Amebiasis)
Cryptosporidium
Acanthamoeba
Naegleria fowleri (Primary amebic meningoencephalitis)
Toxoplasma gondii (Toxoplasmosis)
Trypanosoma brucei
Trypanosoma cruzi (Chagas disease)
Trichomonas vaginalis
Leishmania
Ascaris lumbricoides
Ancylostoma duodenale and Necator americanus
Strongyloides stercoralis
Enterobius vermicularis (Pinworm)
Trichuris trichiura (Whipworm)
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