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Steroid resistance in organizing pneumonia caused by pulmonary cryptococcosis
Motoko Nomura1, Hiromitsu Ohta1, Masahiro Hiruta2
1Department of Respiratory Medicine Jichi Medical University Saitama Medical Center Saitama Japan.
Abstract:
Cryptogenic organizing pneumonia (COP) usually responds well to steroid therapy; however, recurrence is commonly observed when the steroid dose is tapered. A 74-year-old man suspected of having steroid-resistant COP presented to our hospital. Chest computed tomography (CT) revealed new consolidations of the left inferior lobe despite administration of a moderate dose of oral steroids. Repeated transbronchial lung biopsy showed pulmonary cryptococcosis. The left interior consolidations shrank gradually after antifungal therapy was initiated. Immunocompromised patients with pulmonary cryptococcosis show various CT findings, and consolidation is frequently observed. Superimposed pulmonary cryptococcosis infection should be considered in cases of steroid-refractory COP.
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