Pseudo-obstruction, acquired megacolon and sigmoid volvulus

In this article we present the clinical features, diagnosis and management of a group of benign lower gastrointestinal disorders that present with features of large bowel obstruction. Colonic pseudo-obstruction, acquired megacolon and sigmoid volvulus commonly affect elderly institutionalized patients with multiple comorbidities, presenting challenges in management. Identification and treatment of any underlying causative pathology, along with conservative measures, is often the mainstay of management. Surgical intervention is only considered in carefully selected patients. A thorough understanding of these clinical conditions is therefore important.