An Exceptionally Rare Case of Acute Prostatitis Caused by Myroides odoratimimus Infection.

Myroides odoratimimus (M. odoratimimus) is a rare, multidrug-resistant bacterium that occasionally causes opportunistic infections in the environment. We report the first documented case of acute prostatitis caused by M. odoratimimus in a 95-year-old man following transurethral water vapor energy therapy for benign prostatic hyperplasia. The patient developed fever and prostatic tenderness postoperatively, with CT findings consistent with prostatitis. The initial empirical treatment with piperacillin/tazobactam was ineffective. Urine culture revealed a multidrug-resistant bacterium susceptible only to minocycline, which was identified as M. odoratimimus by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA sequencing. Treatment with minocycline led to clinical improvement. This case underscores the importance of considering rare pathogens in patients with indwelling catheters or postoperative infections, particularly when standard antimicrobial therapies prove ineffective. Accurate microbiological diagnosis and appropriate treatment based on antimicrobial susceptibility testing are essential in managing such infections.