Pyomyositis and fasciitis by carbapenem resistant microorganism in a patient with severe tophaceus gout

Abstract

Pyomyositis, defined as a suppurative muscle infection, is a rare entity that is classified as tropical or non-tropical according to the geographical region.

The case of a patient with a history of severe tophaceous gouty arthritis, coming from tropical wet climate in Colombia, who presented with suggestive cellulitis, with a torpid evolution despite standard dual management. An associated abscess was documented, and initially abscessed cellulitis and septic arthritis were suspected, the latter was finally ruled out, once the muscle origin of the abscess becames evident by means of computed tomography and ultrasonography. Intraoperatively, an abscess with fascia involvement and intramuscular tophaceous disease was observed. Surgical drainage and repeated washes were required. Carbapenem resistant Klebsiella pneumoniae was isolated, requiring last-line antibiotic therapy for a prolonged period of time.

Resumen

La piomiositis es una infección supurativa del músculo estriado, rara, que se clasifica según la región geográfica de presentación, en tropical y no tropical.

Se presenta el caso de un paciente con antecedente de artritis gotosa tofácea severa, proveniente de zona tropical, quien comienza con cuadro sugestivo de celulitis, con evolución tórpida pese a manejo estándar dual; se documenta un absceso de ubicación no clara, sospechando en principio celulitis abscedada y artritis séptica, finalmente descartándose esta última y haciéndose evidente origen muscular del absceso por medio de tomografía computarizada y ultrasonografía. Quirúrgicamente se evidenció absceso con compromiso de fascia, enfermedad tofácea intramuscular; requirió drenaje quirúrgico y lavados, documentándose germen Klebsiella pneumoniae resistente a carbapenémicos, requiriendo antibioticoterapia de última línea por un periodo prolongado.