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Asociación Colombiana de Otorrinolaringología y Cirugía de Cabeza y cuello, Maxilofacial y Estética Facial (ACORL)

2025, Number 2

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Acta de Otorrinolaringología CCC 2025; 53 (2)

Sinusitis caused by comamonas testosteroni, an unusual pathogen: a case report

Isaza-Marín A, Márquez-Chejne A, Mendoza-Gallego A, Herrera-Noreña P

Language: Spanish
References: 18
Page: 180-185
PDF size: 206.19 Kb.


ABSTRACT

Introduction: Comamonas Testosteroni is a gram-negative bacillus widely distributed in the environment. Although it is rarely isolated in clinical practice, it has low virulence potential, with few reported cases of endocarditis, peritonitis, and meningitis. Case report: A 79-year-old woman presented with six months of pain in the right side of the face. Brain MRI revealed a lesion in the right sphenoid sinus, suggestive of fungal infection. After surgical management, microbiological and histopathological analysis identifi ed C. testosteroni, leading to targeted antibiotic treatment with good clinical outcome. Discussion: This is the fi rst reported case of chronic sinusitis caused by C. testosteroni. The clinical presentation mimics an invasive fungal infection. Although rare, infection in immunocompromised patients should prompt comprehensive microbiological studies. Conclusions: C. testosteroni should be considered in the differential diagnosis of chronic sinusitis in patients with risk factors. Accurate detection is essential for effective and targeted treatment.


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