Megacolon in adults can result from taking certain medications, abnormal thyroid function, diabetes mellitus, scleroderma, or amyloidosis. Various surgical procedures are used to correct the condition. [britannica.com]

The second case was a 16-year-old adolescent girl with recent diarrhea who collapsed after showering. She, too, had a long history of chronic constipation. [ncbi.nlm.nih.gov]

On physical examination, his abdomen was remarkably distended with generalized tenderness, and weak bowel sounds. Abdominal X-ray showed megacolon at the splenic flexure and a contrast medium enema study showed tapering of the upper rectum. [ncbi.nlm.nih.gov]

Case report 1: a 75-year-old woman with diabetes mellitus, hypertension, tachycardia with atrial fibrillation, bilateral pleural effusions and previous cerebral hemorrhage was admitted in our hospital. [ncbi.nlm.nih.gov]

Treatment may include: Breathing machine (mechanical ventilation) Dialysis for kidney failure Drugs to treat low blood pressure, infection, or poor blood clotting Fluids given directly into a vein Oxygen If rapid widening is not treated, an opening or [medlineplus.gov]

The patient required hospitalization for a bleeding rectal ulcer during the second episode of fecal impaction. [ncbi.nlm.nih.gov]

Case report 1: a 75-year-old woman with diabetes mellitus, hypertension, tachycardia with atrial fibrillation, bilateral pleural effusions and previous cerebral hemorrhage was admitted in our hospital. [ncbi.nlm.nih.gov]