The authors describe a group of 16 patients examined within the interval of February 1998 and January 2000 where perforation of the digestive tract was proved by imaging methods. According to the site of perforation one occurred in the hypopharynx, 7 in the oesophagus, one in the stomach, 3 in the small intestine and 3 in the large intestine. In one instance perforation by a foreign body was involved, in one by a stent, one by caustic action. Four times dehiscence of an anastomosis or fistula after surgery was involved. Seven cases of perforation were spontaneous. In 6 instances (40%) for assessment of the diagnosis of perforation a simple X-ray in an upright position with evidence of pneumoperitoneum, pneumomediastinum or subcutaneous emphysema was sufficient. In 8 instances the authors proved by examination with iodine contrast substance the penetration of contrast substance beyond the lumen of the digestive tract. On CT perforation was proved in two patients. In 6 instances CT examination provided more accurate findings on the extent of changes or grade of recovery.

        Key words: perforation of the digestive tract - imaging methods - simple X-ray - CT - ultrasound - contrast examination of the digestive tract