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日本呼吸器学会英文誌 Respiratory Investigation
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Abstract

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Article in Japanese

Case Report

Pulmonary Mycobacterium simiae infection in a healthy young man: a case report

Kenji Takanoa  Takashi Ishiguroa  Satoshi Mitaraib  Jiro Hasemia  Yoshihiko Shimizuc  Noboru Takayanagia 

aDepartment of Respiratory Medicine, Saitama Cardiovascular and Respiratory Center
bDepartment of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association
cDepartment of Pathological Diagnosis, Saitama Cardiovascular and Respiratory Center

ABSTRACT

One month before a 31-year-old man presented at our center, an abnormal shadow had been noted on his chest X-ray during a medical checkup. Computed tomography at a local clinic revealed a nodular shadow in his left lung, and he visited our center. Bronchial endoscopy was performed, and Mycobacterium simiae was detected in the cultured specimens. Transbronchial lung biopsy using endobronchial ultrasonography with a guide sheath revealed epithelioid cell granulomas, and he was diagnosed as having nontuberculous mycobacteriosis. Treatment with azithromycin, moxifloxacin, and sulfamethoxazole/trimethoprim resulted in a reduction in the abnormal shadows.

KEYWORDS

Mycobacterium simiae  Pulmonary infection  Nontuberculous mycobacteriosis  Causative bacteria  Healthy person 

Received 18 Aug 2021 / Accepted 15 Nov 2021

AJRS, 11(1): 16-20, 2022

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