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  • Title: [A case of pulmonary nontuberculous mycobacteriosis caused by Mycobacterium branderi].
    Author: Yamazoe M, Takahashi R.
    Journal: Kekkaku; 2014 Jun; 89(6):601-6. PubMed ID: 25095645.
    Abstract:
    The patient was a 56-year-old man, who was found to have a cavitary lesion surrounded by small nodules in the left upper lobe (S(1+2)) on the chest computed tomography (CT) scan prior to surgery for oropharyngeal cancer. Both sputum and bronchial lavage smears for acid-fast bacilli were positive, but a polymerase chain reaction for Mycobacterium tuberculosis and Mycobacterium avium complex failed to identify the isolates. Mycobacterium species were cultured in 4 weeks. Mycobacterium branderi was identified by determining the nucleic acid sequences of the 16S ribosomal RNA (16S rRNA) and RNA polymerase B (rpoB) genes. Chemotherapy and radiotherapy for esophageal cancer were started 5 months after the surgery for oropharyngeal cancer. The patient developed fever during the second round of chemotherapy. After chemotherapy and radiotherapy, the wall of the cavitary lesion thickened and a consolidation shadow was noted in the lower portion of the cavitary lesion on the chest CT scan. Combined therapy with clarithromycin, ciprofloxacin, and ethionamide improved the clinical symptoms; further, the abnormal chest shadows disappeared, and the sputum smears and cultures for acid-fast bacilli were negative. Although, currently, there are no recommended therapeutic regimens for pulmonary nontuberculous mycobacteriosis caused by M. branderi, combined therapy including the drugs used in this case may have a beneficial effect on this disease.
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