Evaluate for osteochondroma. A broadbase osteochondroma arising from the posterolateral distal tibial diaphysis has a three cm base and protrudes two cm towards the anteromedial aspect of the fibula. The osteochondroma abuts the fibula and causes chronic pressure effect with resultant concavity of the fibular surface and narrowing of the fibular diameter. The osteochondroma has a thin cartilaginous cap measuring eight mm in thickness and which demonstrates minimal enhancement on post-contrast images. The cortex of both the tibia and fibula is intact. No fracture is evident. No evidence of abnormal enhancement within the soft tissues of the right leg.
Broadbase osteochondroma minimally larger when compared to the prior exam.