Fig. 4From: Pneumoperitoneum, pneumoretroperitoneum and pneumomediastinum: rare complications of perforation peritonitis: a case reportCT scan sagittal view showing pneumoperitoneum [1], pneumoretroperitoneum [3] and pneumomediastinum [2]. Arrow 1 points to pneumoperitoneum, arrow 2 points to pneumomediastinum, arow 3 points to pneumoretroperitoneumBack to article page