Lesion Mimicking Lung Tumor.

Ko, Hoon; Cho, Yongseon; Lee, Yang Deok; Han, Min Soo; Kang, Dong Wook

doi:2004.57.2.197

Tuberc Respir Dis > Volume 57(2); 2004 > Article

Case Report

Tuberculosis and Respiratory Diseases 2004;57(2):197-200.
DOI: https://doi.org/10.4046/trd.2004.57.2.197 Published online August 1, 2004.

Lesion Mimicking Lung Tumor.

Hoon Ko, Yongseon Cho, Yang Deok Lee, Min Soo Han, Dong Wook Kang

¹Department of Internal Medicine, Eulji University School of Medicine, Daejeon, Korea. casimirus@chollian.net
²Department of Pathology, Eulji University School of Medicine, Daejeon, Korea.

Abstract

A 75 year old woman was admitted for evaluation of right lung mass. She was not a smoker. She had been diagnosed as uterine prolapse and during preoperative assessment a lung mass was found incidentally on simple chest X-ray. On chest CT scan, 3.5x2 cm sized homogeneous mass was located in the anterior segment of right upper lobe and there were multiple calcified lymph nodes in both hilum and mediastinal area. We performed diagnostic bronchoscopy, but no definite endobronchial mass was found. Next we did CT guided percutaneous fine needle aspiration biopsy. On microscopy, sulfur granules consisting of multiple granular basophilic centers with hyaline projection of branching filaments were noted. From this finding we made a diagnosis of pulmonary actinomycosis.

Key Words: Actinomycosis, Sulfur granule, Branching filament