Pulmonary Inflammatory Pseudotumor Presenting as Fever of Unknown Origin.
- Author:
Sun Young CHOI
1
;
Yeung Kyun CHO
;
In Kyu BAI
;
Seng Su HONG
;
Mi Suk LEE
;
Du Ryun CHUNG
;
Jun Hee WO
;
Ji So RYU
Author Information
1. Department of Internal Medicine, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Korea.
- Publication Type:Case Report
- Keywords:
Inflammatory pseudotumor of the lung;
Fever of unknown origin
- MeSH:
Anemia;
Biopsy;
Diagnosis, Differential;
Fever of Unknown Origin*;
Fever*;
Granuloma, Plasma Cell;
Humans;
Lung;
Middle Aged;
Myofibroblasts;
Needles;
Plasma Cell Granuloma, Pulmonary*;
Plasma Cells;
Thorax;
Tuberculosis;
Weight Loss
- From:Korean Journal of Infectious Diseases
1999;31(5):435-438
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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.
