Aerococcus viridans pyelonephritis in a young age female patient with type 1 diabetes mellitus: a rare case report

Abstract Background Aerococcus species are Gram-positive cocci, with negative catalase and oxidase activities growth characteristics similar to viridans streptococci. They rarely cause infection in humans. However, there reports of bacteremia, meningitis, septic arthritis, endocarditis due this pathogen the literature. Herein we report a rare case pyelonephritis A. viridans. Case presentation A 31-year-old-female patient type 1 diabetes mellitus was presented left loin pain, fever, nausea, anorexia for 3 days. She had history obstructive nephropathy sloughed necrotic papillae months earlier, mandating bilateral JJ stent insertion. treated 2 weeks course doxycycline (100 mg, twice daily) based on antibiotic susceptibility profile her urine culture responded well. Conclusion This highlights possibility complicated urinary tracts human pathogen.