Fig. 3
Ischaemic colitis in a 74-year-old male with vasculitis who presented with abdominal pain and bloody diarrhoea. (a, b) Contrast-enhanced CT scan reveals involvement of the sigmoid colon and splenic flexure (orange arrows) with marked wall thickening and pericolic streakiness (asterisk). Diagnosis was confirmed at colonoscopy and biopsy. The ischaemic process resolved