Which of the following doesn't present with bleeding per rectum?: (A) Ca rectum, (B) Sigmoid volvulus, (C) Inflammation of Meckel's diveiculum, (D) Enteric fever
Answer is B. Sigmoid volvulus presents with features of lower intestinal obstruction not bleeding per rectum. Volvulus refers to torsion of a segment of the alimentary tract, which often leads to bowel obstruction. The most common sites of volvulus are the sigmoid colon and cecum.