Multifocal pyomyositis associated with hip subluxation in a pediatric patient: a case Report

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Maria Camila Perez Vanegas
Maira Jimenez Claros
Johan Sebastian Ramos Marin
Angie Carolina Perez Vanegas
Luis Antonio Galvis

Abstract

Abstract


Background. Pyomyositis is an acute infection of skeletal muscle, primarily affecting school-aged children, especially those residing in tropical countries. The most isolated pathogen is the methicillin-resistant Staphylococcus aureus (MRSA). Its diagnosis presents a challenge due to the nonspecific clinical presentation that mimics various pathologies. Imaging findings, combined with microbiological isolation, are essential for diagnosis. Case report. Here, we present the case of a 3-year-old child with a diagnosis of hip subluxation related to multifocal pyomyositis of the iliopsoas, gluteus medius, external obturator, internal obturator, and pectineus muscles. Conservative management based on antibiotic therapy was employed as the cornerstone of treatment, resulting in complete resolution of both the clinical and imaging manifestations as demonstrated in the follow-up MRI. Conclusion. Pyomyositis is a common infection in tropical countries, in many cases the clinical picture is non-specific, being a great simulator of other pathologies, which is why it is frequently underdiagnosed. Blood cultures present a low yield in most cases, unlike cultures taken directly from the abscess. Diagnostic suspicion is essential to use the correct antibiotic coverage in a timely manner.

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How to Cite
Perez Vanegas, M. C., Jimenez Claros , M., Ramos Marin , J. S., Perez Vanegas , A. C., & Galvis, L. A. (2025). Multifocal pyomyositis associated with hip subluxation in a pediatric patient: a case Report. Pediatría, 57(3), e488. https://doi.org/10.14295/rp.v57i2.488
Section
Case report

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