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Case 80. Coccidioidomycosis of lung (34 y-o F)
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| Surgical specimen of the apical lung lesion in a Japanese student who traveled in Arizona |
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Key words : Coccidioides immitis, caseous necrosis
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| Encapsulated caseous focus, termed coccidioidoma, closely resembles old tuberculosis (HE, low power). | Cholesterin cleft deposition seen in caseous necrosis. Thick fibrous capsule is formed (HE). | |
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| A degenerated sporangium containing endospores is observed in the necrotic background, confirming the diagnosis of coccidioidomycosis (HE, high power). | Endospores in the sporandium of Coccidioides immitis are PAS-positive. | |
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