Vijayawada, Jan. 29 -- In a remarkable medical achievement, an 86-year-old man presented to Manipal Hospital near here with a long-standing history of difficulty in swallowing, recent onset regurgitation, and nocturnal cough.

Despite his symptoms, he showed no loss of appetite but had significant emaciation. Regurgitation is the involuntary return of swallowed food or liquid back into the mouth.

The patient was evaluated for possible esophageal cancer. Tests showed a dilated esophagus with food stuck but no signs of cancer. A Contrast-Enhanced Computed Tomography (CECT) of the chest and upper abdomen ruled out any tumors pressing on the esophagus. Further investigation through high-resolution esophageal manometry confirmed that he has Typ...