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Ko, Cho, Lee, Han, and Kang: Lesion Mimicking Lung Tumor
Case Report

Tuberculosis and Respiratory Diseases 2004; 57(2): 197-200.

Published online: 31 August 2004

DOI: https://doi.org/10.4046/trd.2004.57.2.197

Lesion Mimicking Lung Tumor

Hoon Ko, M.D., Yongseon Cho, M.D., Yang Deok Lee, M.D., Min Soo Han, M.D., Dong Wook Kang, M.D.*

Department of Internal Medicine, Eulji University School of Medicine, Daejeon, Korea.

*Department of Pathology, Eulji University School of Medicine, Daejeon, Korea.

Address for correspondence: Yongseon Cho, M.D. Department of Internal Medicine, Eulji University Hospital, 1306, Doonsan Dong, Seo-Gu, Daejeon, 302-120, Korea. Phone: 042-611-3152, Fax: 042-259-1111, casimirus@chollian.net

Received 26 March 2004       Accepted 27 June 2004

Copyright©2004. The Korean Academy of Tuberculosis and Respiratory Diseases. All rights reserved.

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.

Keywords: Actinomycosis, Sulfur granule, Branching filament

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