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 Home > Available Issues |
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 Case Reports |
| Pulmonary Inflammatory Pseudotumor Presenting as Fever of Unknown Origin |
| Sun Young Choi/Yeung Kyun Cho/In Kyu Bai/Seng Su Hong/Mi Suk Lee/Du Ryun Chung/Jun Hee Wo/Ji So Ryu |
| Department of Internal Medicine, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Korea. |
Vol.31 Num.5 (p435~438)
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Inflammatory pseudotumor (IPT) is an uncommon benign neoplasm of unknown etiology presenting as an incidental mass, fever, malaise, anemia, and weight loss. Generally, IPT in the lung is asymptomatic. A case of pulmonary IPT presenting as prolonged fever in a 59 year old man is presented with clinicopathological findings.
The patient had been febrile for three months before admission. Five months before
admission, a chest X-ray showed a small left pulmonary mass which was regarded as old tuberculosis. An chest X-ray taken on admission revealed a left pulmonary mass two times the size of the one on the first x-ray. Percutaneous needle aspiration and biopsy were performed, and the microscopic examination revealed a plasma cell reaction with myofibroblastic proliferation, consistent with IPT. As prolonged unexplained fever is a frequent symptom in patients with IPTs, this disease entity should be included in the differential diagnosis of fever of unknown origin.
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Keywords : Inflammatory pseudotumor of the lung, Fever of unknown origin |
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