RT Journal Article T1 Multifocal Abdominal Pyomyositis From Subcutaneous Dissemination in an Immunocompetent Patient. A1 Ropero-Luis, Guillermo A1 López-Núñez, Marina A1 Hidalgo-López, Clara K1 abdominal wall infection K1 cellulitis K1 infectious myositis K1 intramuscular injections K1 pyomyositis AB A 61-year-old woman presented to the emergency ward complaining of low back pain for a month. She had undergone several spinal surgeries and a right radical nephrectomy 30 years before. A few days earlier she was injected with an intramuscular painkiller in her right buttock. An abdominal CT scan revealed multiple abscesses in the psoas muscle and the right posterior abdominal wall, including cellulitis in the adjacent subcutaneous tissue and the injection site. A diagnosis of pyomyositis from subcutaneous dissemination was made, and intravenous cefazolin was initiated. After five days of favorable progress, treatment was switched to oral cefadroxil to complete four weeks, leading to full recovery. SN 2168-8184 YR 2022 FD 2022-04-02 LK http://hdl.handle.net/10668/21677 UL http://hdl.handle.net/10668/21677 LA en DS RISalud RD Apr 11, 2025