The pitfalls of gallbladder agenesis combined with small bowel malrotation.

Gallbladder agenesia is a rare congenital anomaly that is frequently overlooked in clinical practice, often misdiagnosed as chronic sclero-fibrous cholecystitis or cholelithiasis. Failure to recognize it intraoperatively can prompt unnecessary and hazardous exploration of the biliary tree and liver, increasing the risk of iatrogenic injuries.