PMC5723375_01
a) CT images taken at the time of admission. There is an abscess in the right lower lobe. 1b) Day 18 of treatment. Despite administration of antibiotics, the abscess exacerbated. 1c) Day 35 of treatment (day 18 of LZD administration). The abscess in the right lower lobe is reduced. 1d) Day 195 of LZD administration. A notable improvement can be observed in the abscess in the right lower lobe.
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An abscess was found in the right lower lobe on computed tomography (CT) images taken during the initial visit (Fig. 1a), and as respiratory insufficiency was apparent, he was admitted the same day. In the CT image taken on day 18, it was evident that the infiltrative shadow on the lower right lobe had worsened (Fig. 1b). Because his imaging findings also showed improvement (Fig. 1c), intravenous administration of LZD was changed to oral administration on day 36, and MEPM and AMK were discontinued and oral administration of 900 mg/day of FRPM was added. Sterilization was continued after discharge, and although the inflammatory response and sputum Mycobacterium smear did not become negative, continuous oral medical treatment led to notable improvement in CT images (Fig. 1d).