Extraskeletal chondroma of the foot-a case report.

Extraskeletal Chondroma (ESC) is uncommon which occurs predominantly in hands and feet. It has a variable histology, with two thirds of the ESCs showing mature hyaline cartilage which is arranged in distinct lobules with fibrosis, or ossification, or myxoid areas and few showing immature patterns, with chondroblasts mimicking extraskeletal myxoid chondrosarcomas (ESMCSs). ESCs can recur but they never metastasize, whereas ESMCSs can metastasize, which require aggressive treatment.