Articles

Roseomonas mucosa is a slow-growing, pink-pigmented, Gram-negative coccobacillus historically considered an opportunistic pathogen in severely immunocompromised oncology patients. However, recent genomic and clinical data demonstrate its primary reservoir is the human skin microbiome, facilitating an evolving epidemiology. We report a case of R. mucosa bacteremia in a 69-year-old woman with short bowel syndrome (SBS) and total parenteral nutrition (TPN) dependence. This case supports an emerging pattern: R. mucosa is increasingly identified in "device-compromised" hosts. Furthermore, this pathogen may present without elevated host-response biomarkers and exhibits intrinsic resistance to empiric broad-spectrum beta-lactams, complicating early management.