A method is disclosed for displaying image data of a large intestine of a patient on the basis of tomographic examination data. In at least one embodiment, the method includes scanning of the patient, after ingestion of a contrast agent, in at least two differently aligned positions using a tomography system and generating a tomographic image data record for each position; segmenting the large intestine in the tomographic data records; detecting and marking regions of the segmented large intestine with adjacent remaining stool in the intestine (covered regions); registering the segmented large intestine in the at least two tomographic image data records; displaying a tomographic display of the segmented large intestine including markings of the covered regions; and displaying a selection menu in which tomographic displays of the segmented large intestine in the at least two differently aligned positions of the patient, including a marking of the covered regions, can be selected alternatively.