The patient developed fever, dyspnea, and abdominal distension on day 28 of induction. Chest X-ray (A) showed a newly developed pneumonic consolidation. Abdominal X-ray (B) showed a gas-filled colonic dilatation resembling toxic megacolon. A high-resolution computed tomography (HRCT; C, D) demonstrated the development of consolidations and ground-glass opacities in both lung fields.