RT Journal Article SR Electronic T1 A Rare Case Of Sigmoid Colon Perforation With Subsequent Psoas Abscess Collection With Extensive Involvement Of The Sartorius Muscle JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr-2016-218715 DO 10.1136/bcr-2016-218715 VO 2017 A1 Ali Wadood A1 Abdulrahman Odeh A1 Khizer Rana A1 Shafquat Zaman YR 2017 UL http://casereports.bmj.com/content/2017/bcr-2016-218715.abstract AB A middle-aged man was admitted with worsening hip pain, fevers and reduced mobility. These symptoms were preceded by a mechanical fall but despite regular analgesia, symptoms did not resolve. His prior medical history included ischaemic heart disease, hypertension and hypercholesterolaemia. A trauma and orthopaedic review revealed a painful left hip with reduced range of motion. In addition, some mild tenderness in the left iliac fossa was noted. Blood tests revealed markedly raised inflammatory markers. Plain radiographs and ultrasound were normal. MRI scan found a massive left iliopsoas collection secondary to perforated diverticular disease of the sigmoid colon. The patient was managed with intravenous antibiotics and the collection was drained percutaneously. Approximately 500 mL of pus was aspirated. The patient made an excellent recovery with interval imaging showing a reduction in the collection size.