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[A CASE OF PULMONARY MYCOBACTERIUM ABSCESSUS INFECTION SUCCESSFULLY TREATED WITH SHORT-TERM CAM, AMK, AND IPM/cs FOLLOWED BY LONG-TERM ORAL CAM AND LVFX].

A 78-year-old woman who had been treated for two years with ITCZ for chronic pulmonary aspergillosis associated with prior pulmonary tuberculosis was admitted to our hospital because of general fatigue and hemosputum along with deterioration of her chest radiographic findings. Mycobacterium abscessus had been isolated once from her sputum one year before admission. We performed fiberoptic bronchoscopy (FOB) in order to help establish a final diagnosis. Sputum aspirated from her bronchus on FOB stained positive for acid-fast bacilli and was negative for Tbc and MAC using PCR. From these results, we diagnosed the patient with pulmonary M. abscessus infection. Chemotherapy with AMK, IPM/cs, and CAM was initiated. Because her symptoms rapidly improved, we switched the chemotherapy to long-term oral CAM and LVFX, and she has been in a good condition at 12 months after the initiation of the therapy. Recently, subtypes of M. abscessus complex, such as M. massiliense, have been recognized, which are more sensitive to chemotherapy. Considering the good response to therapy, there is a possibility that is the patient in the current case had a M. massiliense infection.