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Radiology Rounds 56 Year Old With Elbow Pain

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Information about Radiology Rounds 56 Year Old With Elbow Pain

Published on June 24, 2008

Author: radrounds

Source: slideshare.net

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56 year old with elbow pain Laura Avery, MD Massachusetts General Hospital Harvard Medical School Boston, MA, USA

 

 

Incidental finding…Did you see it?

 

Avian Spur- AKA Supracondylar process of the humerus This anatomic variant is present in 1% of the general population. It may represent a remnant structure from prehistoric humans and it is found in several mammals. The ligament of Struthers connects the process to the medial epicondyle of the humerus. Symptoms may be produced if the median nerve is compressed by the ligament leading to carpal tunnel like symptoms. Title: Supracondylar Process Imaging Findings: Bony process protruding obliquely from the distal third of the anteromedial humerus oriented toward the elbow joint. The associated ligament of Struthers extending from the distal bony process to the medial epicondyle forms a supracondylar foramen through which the median nerve and brachial artery (or one of its branches) travel. Clinical: Found in 0.6%-2.7% of the population, most common in Europeans. Usually asymptomatic, though may present as a mass. Occasionally, it may produce median nerve compression and claudication of the brachial artery, especially when the elbow is held in pronation and extension. Can come to attention upon palpation or during posttraumatic assessment for injuries. Etiology: Embryologic vestigial remnant of climbing animals and seen in many reptiles, most marsupials, cats, lemurs and American monkeys. Usually found 5-7 cm above the medial epicondyle.

This anatomic variant is present in 1% of the general population. It may represent a remnant structure from prehistoric humans and it is found in several mammals. The ligament of Struthers connects the process to the medial epicondyle of the humerus. Symptoms may be produced if the median nerve is compressed by the ligament leading to carpal tunnel like symptoms.

Title: Supracondylar Process

Imaging Findings: Bony process protruding obliquely from the distal third of the anteromedial humerus oriented toward the elbow joint.

The associated ligament of Struthers extending from the distal bony process to the medial epicondyle forms a supracondylar foramen through which the median nerve and brachial artery (or one of its branches) travel.

Clinical: Found in 0.6%-2.7% of the population, most common in Europeans. Usually asymptomatic, though may present as a mass. Occasionally, it may produce median nerve compression and claudication of the brachial artery, especially when the elbow is held in pronation and extension. Can come to attention upon palpation or during posttraumatic assessment for injuries.

Etiology: Embryologic vestigial remnant of climbing animals and seen in many reptiles, most marsupials, cats, lemurs and American monkeys. Usually found 5-7 cm above the medial epicondyle.

 

 

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