Fig. 5
From: Gastrointestinal perforation: clinical and MDCT clues for identification of aetiology
92-year-old patient on long-term corticosteroids. a Soft tissue window and (b) lung window contrast-enhanced axial images demonstrate a discontinuity of the hyperenhancing gastric mucosa, postero-medially to an extraluminal gas bubble (area within circle). Free fluid (f) and pneumoperitoneum (p) are outlining air-filled bowel loops (L) and the falciform ligament (arrowhead). The triangular-shaped separate gas bubble (arrow) points towards the perforation site