A 25-year-old man presents with a painful swollen right knee joint, developing over 24 hours. He also reports recent urethral discharge. Joint aspirat...

Question

A 25-year-old man presents with a painful swollen right knee joint, developing over 24 hours. He also reports recent urethral discharge. Joint aspiration reveals cloudy synovial fluid with a white cell count of 60,000 cells/mm³, predominantly neutrophils. Gram stain is negative, but microscopy shows no crystals. What is the most likely diagnosis?

Accepted Answer

Septic arthritis (gonococcal)

Answer

Gout

Answer

Pseudogout

Answer

Reactive arthritis

Answer

Haemarthrosis

ukmla MCQ (SBA): Septic Arthritis (Gonococcal)