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A Case of Primary Pulmonary Cryptococcosis Misdiagnosed as Lung Cancer
Kyung Sik Ko1), Min Soo Han1), Hee Doo Kyung2), Joo Chul Park2), Ik Yang3), Dong Wook Sung3), Ju Hie Lee4), Hwan Jo Suh1)
Department of Internal Medicine1), Thoracic and Cardiovascular Surgery2), Radiology3), and Anatomical Pathology4), College of Medicine, Seoul, Korea
Vol.25 Num.3 (p259~264)
Cryptococcosis is a systemic mycosis, which has been increasingly recognized as a opportunistic fungal infection since the onset of acquired immunodeficiency syndrome (AIDS) epidemic in the early 1980's. The pattern of pulmonary cryptococcosis is highly variable.
The case we reported here was a 72 year-old Korean male who had a history of pulmonary tuberculosis. On routine chest X-ray, patient had a mass on the right lower lobe. The chest CT revealed that heterogenous low density mass with distal pneumonia and probably right hilar lymphadenopathy. We suspected that this case was a lung cancer.
Operation was done and microscopic examination showed numerous granulomatous lesions. We found several intracytoplasmic organisms in this section.

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