BACKGROUND
A 39-year-old man presents with a 6-month history of
pain in his right ankle. The pain has been insidious and
is accompanied by stiffness and swelling of the ankle
joint. The patient cannot move his ankle well. He cannot
perform his daily activities despite using a crutch.
The patient has no history of trauma. He does not have
fever, other joint involvement, or back pain. He has no
history of sexually transmitted diseases, and his family
history is negative for arthritis.
On physical examination, the patient has normal vital
signs, including temperature. Cardiac findings are
negative for murmurs or rubs. No rash or penile
discharge is observed. Examination of the right ankle
elicits discomfort and reveals physical limitation with
inversion and eversion and especially with flexion and
extension. On palpation, the patient has mild
tenderness, and the swelling feels firm. No warmth or
redness is found over the joint. The remainder of the
physical examination yields unremarkable results.
A plain radiograph of the ankle is obtained. What is the
diagnosis?
Hint
Monoarticular large-joint disease with a male
preponderance
Author:
Gautam Dehadrai, MD, Staff
Physician, Department of Radiology, Veterans Affairs Medical Center,
Albuquerque, NM
eMedicine Editor:
Rick G. Kulkarni, MD,
Assistant Professor, Yale School of Medicine, Section of Emergency
Medicine, Department of Surgery, Attending Physician, Medical Director,
Department of Emergency Services, Yale-New Haven Hospital