An Initially Missed Diagnosis of Venous Thromboembolic Phenomenon in Adult-Onset Still's Disease: A Case Report and Literature Review.

BACKGROUND Still's disease is a rare multisystemic autoinflammatory disorder. The diagnosis of adult-onset Still's disease (AoSD) can be challenging due to the rarity and overlapping features with many other systemic disorders. Complications of the illness can involve many systems in the human body.