 However, many cases of solitary enchondromata go unnoticed due to lack of symptoms.Enchondromas are commonly found in the phalanges, metacarpal, and metatarsal bones in patients of Ollier disease due to the affinity of enchondromas to long tubular bones such as the femur and humerus.A unilateral distribution of bone lesions is usually observed but bilateral distributions or a singular extremity can occur as well.