Extraskeletal chondroma is a cutaneous condition, a rare benign tumor of mature cartilage.

[1] An extraskeletal chondroma often manifests clinically as a nodular soft tissue mass that steadily enlarges without discomfort and may exist for varying lengths of time before diagnosis.

[5] An extraskeletal osteochondroma may show up on traditional radiography as a well-circumscribed, lobulated mass with intense core mineralization.

[7] The most effective radiologic method is magnetic resonance imaging (MRI), which is able to characterize the tumor's extent, contour, shape, and intensity as well as its relationship to any calcifications or surrounding structures.

[5] According to histopathology, the tumor has a lot of lobular structures and certain sections that resemble mucus-containing hyaline cartilage.