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Supracondylar process of the humerus : ウィキペディア英語版 | Supracondylar process of the humerus
The supracondylar process of the humerus is a bony projection on the anteromedial aspect of the upper arm bone (humerus), about 5 cm above the medial epicondyle. It is directed downward, forward and medially pointing to the medial epicondyle. It is a skeletal variant which occurs in about one percent of all people. A fibrous band, Struthers ligament, may connect this process to the medial epicondyle. ==Diagnosis and role in disease== Supracondylar processes are usually asymptomatic, but may be palpable as a mass on the upper arm. They are most commonly found as an incidental finding on radiographs made for other reasons, but occasionally isolated fractures of the process itself may lead to its discovery. Rarely, presence of the process and a connecting ligament may lead to compression of the brachial artery and the median nerve, leading to pain, paresthesia and/or ischemia.
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