Vol. 5, Issue 1 (2019)

Abstract: Myositis ossificans (MO) occurs as a complication in approximately 20% of large haematomas associated with muscle contusions and strains. Post-traumatic myositis ossificans is a benign condition of heterotopic bone formation, which can mimic soft-tissue or bone malignancies. We are presenting a case of 22 year old female patient presented to us with complaint of pain and swelling over lateral aspect of right thigh since 3 months following intramuscular injection at right gluteal region. There was history of massage. On examination swelling was located on lateral aspect of right thigh, just below greater trochanter of femur measuring size of 4*4 cm with normal local temperature. Swelling was hard, non-reducible, non-mobile in nature. MRI was suggestive of 4*2.8 cm size hyperintense foci at inferiolateral aspect of right gluteal maximus muscle. It was excised in toto. Post operative patient had significant pain relief with good outcome in range of movement.