A CASE REPORT AND REVIEW OF TRAUMATIC BILATERAL ILIACUS MUSCLE HEMATOMAS

Abstract

　　The patient was a 16-year-old boy who was in a motorbike accident. He slipped on a manhole cover while riding, and was brought in by ambulance. No contusions were evident anywhere on the body, and no bone fractures were identified. We observed bilateral iliacus muscle hematoma on contrast-enhanced computed tomography with extravasation of contrast medium within those hematomas. Vital signs were stable, and we selected conservative treatment and admitted the patient. On the third day after injury, the patient complained of numbness in the left thigh, but numbness disappeared the following day. From the circumstances of the motorbike accident, we conjectured that both hip joints had experienced sudden hyperextension during the accident, resulting in hematomas within the iliacus muscles. If shock symptoms are absent and no progression of femoral nerve palsy is apparent, conservative treatment is valid for hematoma due to trauma in the iliopsoas muscle, including the iliacus muscle.