A fairly common, painful enlargement and inflammation of the first metatarsophalangeal joint is

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The described condition is commonly known as a bunion, which is an enlargement and inflammation of the first metatarsophalangeal joint (the joint at the base of the big toe). A clavus is a corn or callus on the foot, a contracture is a muscle or joint that is permanently tightened or shortened, and a Baker's cyst is a swelling behind the knee caused by an accumulation of joint fluid.

A Fairly Common, Painful Enlargement and Inflammation of the First