Myroides odoratimimus, una causa infrecuente de infección de tejidos blandos y osteomielitis / Myroides odoratimimus, a rare cause of soft tissue infection and osteomyelitis: case report

Resumen Las infecciones por bacterias gramnegativas del género Myroides son muy poco frecuentes y generalmente afectan la piel y tejidos blandos de pacientes con algún grado de inmunocompromiso. Presentamos un caso de una mujer de 23 años, con antecedentes de mielomeningocele operado y pie bot, que cursó con una infección profunda de la extremidad inferior derecha por Myroides odoratimimus. La identificación de especie se realizó con técnica de MALDI-TOF. El tratamiento fue inicialmente con meropenem y ajustado a ciprofloxacina, junto con realizar una amputación supramaleolar derecha.

Abstract Infections due to Gram-negative bacteria of the genus Myroides are very rare and generally affect the skin and soft tissues of patients with some degree of immunocompromise. We present a case of a 23-year-old patient with a history of myelomeningocele surgically resolved at 3 years of age and bot foot, who presented with a deep infection of the right lower extremity by Myroides odoratimimus. The species identification was carried out with MALDI-TOF and the treatment was initially carried out with meropenem and finally then ciprofloxacin, in addition to right supramaleolar amputation.

Myroides Species: A Rare Cause of Endocarditis.

Myroides species are not part of human flora and are commonly found in soil and water. They are considered as low-grade pathogens. Genera Myroides are members of the family Flavobacteriaceae and comprise a group of yellow-pigmented, oxidase positive, non-motile, non-fermentative Gram-negative bacilli. However nowadays, they have been identified as causative agents in urinary tract infections, pneumonia, meningitis, fasciitis, and ventriculitis in immunocompromised patients, and a few life-threatening infections have been reported in immunocompetent individuals also. We present a case 32-year-old female known the case of rheumatic heart disease that underwent valve replacement around 17 years back. She was admitted with complaints of breathlessness since 3 days in an emergency for evaluation. She underwent redo mitral valve replacement. Intraoperatively, vegetations were present on the mitral valve. Subsequently, her blood culture grew Myroides spp. She responded well to treatment and discharged.