Case description:
We report the case of a 30-year-old man who presented with acute
arthritis occurring two months after an episode of urethral discharge.
Physical examination revealed polyarthritis, dactylitis, sacroiliac
joint involvement, and plantar papulosquamous plaques. The human
leukocyte antigen B27 was positive. Detection of chlamydia trachomatis
and Gonococcus in the first catch urine specimen was negative. Hepatitis
B and C, chlamydia trachomatis, Human Immunodeficiency Virus and
syphilis serologic test results were negative. Pelvic magnetic resonance
imaging revealed left sacroiliitis. The patient was treated with
antibiotics, diclofenac, and sulfasalazine. After six months of
follow-up, a significant clinical improvement was obtained without
remission, suggesting an evolution to chronic spondylarthritis.