A Case of Mycobacterium Fortuitum Infection in the Left Thigh
Abstract
BACKGROUND: In March 2024, our hospital confirmed a case of Mycobacterium fortuitum infection in the left thigh. In January 2024, the patient underwent buttock augmentation surgery at a private plastic surgery hospital. One month after the surgery, the patient sought medical attention at the plastic surgery hospital, due to pain in both legs while sitting. Upon examination, two subcutaneous masses were found in the left thigh, the tumors were painful to pressure, with obvious redness and swelling and elevated skin temperature; therefore, the patient was treated with intravenous infusion (cephalosporin drugs), but after one month of treatment, no significant improvement was observed. In order to seek additional diagnosis and treatment, the patient came to our hospital for treatment.
METHODS: Clinical treatment of the left lower limb included wound debridement, abscess incision and drainage, and photodynamic therapy with 5-aminolevulinic acid-mediated photodynamic therapy (ALA-PDT). During surgery, subcutaneous tough tissue was taken for pathogen examination, including acid fast staining, bacterial culture, and identification. Additional auxiliary examinations: urine routine, blood routine, coagulation function, liver function, kidney function, blood lipids, and blood sugar.
RESULTS: Bacterial acid-fast staining: positive. Bacterial Culture and Identification (MALDI-TOF MS): Mycobacterium fortuitum. Clinical treatment plan: clarithromycin 500 mg po bid, moxifloxacin 400 mg po…
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