Idiopathic chondrolysis of the hip is an uncommon disorder characterized by the progressive destruction and ultimate loss of articular cartilage of the hip joint. While trauma, infection and immobilisation can lead to chondrolysis of the hip, the exact underlying cause for idiopathic chondrolysis is not clearly defined. Studies have suggested immunological aetiology for idiopathic chondrolysis. Imaging studies including plain radiography and MRI scanning are useful in diagnosis this condition at early stages. We present a case report of this rare condition in a preadolescent girl with the emphasis of early imaging findings which helped in arriving the accurate diagnosis.