Juvenile Dysplasia Epiphysealis Hemimelica with Multiple Ankle Free Body

Table 2

Differential diagnosis of DEH.

	DEH	Osteochondroma	Synovial osteochondromatosis
Onset of age	Children and young adults	Younger than 30 years	30–60 years
Location	Epiphysis	Metaphyseal region of the long bones	Inside and outside of the joint
Histological findings	Bone dysplasia with an overlying cartilage cap		Numerous cartilage nodules surrounded by synovial tissue
Genetic alterations	Not reported	EXT gene	FN1-ACVR2A fusion