Congenital absence of gallbladder.

Clinical applications of applied physiology are essential both in teaching as well as in the meaningful clinical interpretation of the disease. Congenital absence of gallbladder (CAGB) is an extremely rare anomaly. This case is of a 20-year-old student, presented with right upper quadrant abdominal pain. The absence of the gallbladder was diagnosed on ultrasonography and computerized tomography (CT) scan of abdomen.