Tuberc Respir Dis.  2004 Aug;57(2):197-200. 10.4046/trd.2004.57.2.197.

Lesion Mimicking Lung Tumor

• Ko H
• Cho Y
• Lee YD
• Han MS
• Kang DW

• KMID: 2132504
• DOI: http://doi.org/10.4046/trd.2004.57.2.197

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.

Keyword

Actinomycosis; Sulfur granule; Branching filament

MeSH Terms

Actinomycosis
Aged
Basophils
Biopsy
Biopsy, Fine-Needle
Bronchoscopy
Diagnosis
Female
Humans
Hyalin
Lung*
Lymph Nodes
Microscopy
Sulfur
Thorax
Tomography, X-Ray Computed
Uterine Prolapse
Sulfur