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首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Case Report: A Great Mimicker of Neoplasm: Pulmonary Cryptococcosis in an Immunocompetent Host After High-Altitude Descent
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Case Report: A Great Mimicker of Neoplasm: Pulmonary Cryptococcosis in an Immunocompetent Host After High-Altitude Descent

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Cryptococcus exposure in certain global regions is common and yet virulence in the immunocompetent host remains rare. Radiological findings of pulmonary cryptococcosis may include nonspecific lung nodules or masses indistinguishable from lung cancer or pulmonary tuberculosis. We present a case of an immunocompetent diabetic female who presented with progressively worsening pleuritic chest pain and cough with travel between Tibet and New York 2 months earlier. Chest imaging demonstrated a large lobulated mass, acid-fast bacillus smears were negative, and our patient underwent pulmonary biopsy, which grew rare budding yeast later confirmed by mucicarmine staining as Cryptococcus. Our patient was successfully treated with fluconazole therapy. We hypothesize that the high altitude of Tibet may allow for clinical latency followed by symptomatic reactivation on descent. A raised index of suspicion for pulmonary cryptococcosis with careful attention to travel history is expected to facilitate timely diagnosis.

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