Yao Syndrome Staff | November 23, 2020 Review "Yao Syndrome: A Case Report & Clinical Review," The Rheumatologist, November 2020, before taking this month's quiz. In evaluating patients with episodic symptoms/manifestations, physicians need to be alert for autoinflammatory diseases. Yao syndrome is characterized by periodic fever, dermatitis, arthritis and swelling of the distal extremities, as well as GI and sicca-like symptoms. Patients generally have flu-like symptoms, followed by episodic fever and erythematous patches or plaques with a pathological finding of spongiotic dermatitis. An episodic flare may last a few days to weeks, with an asymptomatic interval of several weeks or months. GI symptoms are common. Yao syndrome is an autoinflammatory disease characterized by mutations in which of the following genes? Collagen type 3 TNF receptor NOD2 Ubiquitin MEFV None Time's up