Özet:

Background: The aim of this study is to present the computed tomography (CT) imaging features and etiologic causes of invagination, which is one of the causes of abdominal pain in adults, and to emphasize the recognition of invagination. Materials and Methods: In our study, images of patients who were admitted to our clinic for abdominal pain between January 2010 and July 2019 and diagnosed with invagination in intravenous contrast-enhanced abdominal CT were retrospectively analyzed. We evaluated the age and sex, level of invagination, length of invaded segment, causes of invagination. Results: In our study, contrast-enhanced abdominal CT of 44 patients (23 (52%) male and 21 (48%) female) were examined. The mean age of the patients was 39.1 (18-78). Eight (18%) patients had colon invagination, 35 patients (79%) had small bowel and 1 patient (2%) had ileocolic invagination. Malignancy was the most common cause of colon invagination (62.5%) and benign pathology was the most common cause of intestinal invagination (48.5%). When all patients in our study were evaluated, a malignant pathology was observed in 10 patients (23%) and a benign pathology was observed in 20 patients (45%).No etiologic factor was found in 14 patients (32%) and they were accepted as idiopathic. When the length of the invaded segment was evaluated, it was found to be 5 cm (2-20 cm) in colon invagination, 3,6 cm (1-13 cm) in the small bowel segments. The relatively long segment was affected in the colon loops. Conclusion: In our study, 18% of invaginations were located in colon and 79% of small intestine. Sixty eight percent of total cases had malignant or benign pathology. Computed tomography shortens the diagnosis of invaginations, a cause of abdominal pain in adults, and can determine the etiologic cause to a large extent. Key words: Adult, Invagination, Computed Tomography, Malignancy