Deafness-small bowel diverticulosis-neuropathy syndrome is characterised by progressive sensorineural deafness, progressive sensory neuropathy and gastrointestinal abnormalities (progressive loss of gastric motility, small bowel diverticulosis).

An anomaly of the pharynx, i.e., of the tubular structure extending from the base of the skull superiorly to the esophageal inlet inferiorly.