A rare occurrence of enchondroma with pathological fracture of proximal femur in an adult female: A case report

Enchondroma occurrence in the proximal femur is a very uncommon condition. We report a 40-year-old female with a history of accidental slip and fall, sustained injury to her left lower limb, and was unable to bear weight on the injured leg since the fall. Anteroposterior radiograph of the pelvis with bilateral hips shows a well-defined lytic lesion in the neck of the femur with some calcified matrix and no periosteal reaction with the left femoral subtrochanteric fracture. Magnetic resonance imaging scan revealed hypointense signals on T1 and hyperintense signals on T2 sequence over the proximal femur as well as left subtrochanteric femur fracture. After preanesthetic evaluation, bone curettage with excision biopsy with open reduction and internal fixation with long proximal femoral nail and bolts and iliac crest bone graft was done. A biopsy sample sent for histopathological examination reveals enchondroma. Complete weight bearing was started after four months. No recurrence was noted on follow up.