An examination of the abdominal cavity and its contents: When Gregory was in hospital an abdominoscopy was performed using an endoscope to detect a possible disease in the stomach region.

The abdominoscopy is a direct examination of the abdominal organs by endoscopy, peritoneoscopy, or laparoscopy, which is an optical instrument that uses a single puncture allowing the examination of the organs of the abdominal cavity and peritoneum within the limits defined by the length of the optical system.