A Right-Sided Megasigmoid Colon with Elongated Rectum: Embryological Basis and Clinical Significance

Abstract

Sigmoid colon and rectum represent the distal segments of the large intestine. Their associated anatomical variants usually identified incidentally during radiological or surgical interventions. The present report details right-sided mega sigmoid colon associated with elongated rectum (abdominal-pelvic rectum) observed in a 51-year-old formalin embalmed male cadaver. This existence highlights attention during planning and implementation of radiological and surgical procedures involving the lower abdomen and pelvic visceral.