Giant gallstone performed by emergency laparoscopic cholecystectomy()

INTRODUCTION: Gallstone disease is very common, but the gallstone bigger than 5 cm in diameter is very rare. It is very challenging to be removed by laparoscopic cholecystectomy (LC) and poses extra difficulty in emergency. PRESENTATION OF CASE: A 70-year-old man complained of abdominal pain in the right upper quadrant with fever of 38 °C for two days. Abdominal ultrasound indicated acute cholecystitis and a single, extremely large gallstone (95 mm × 60 mm × 45 mm). Emergency laparoscopic cholecystectomy was performed successfully. DISCUSSION: Gallstone over 5 cm in diameter is very rare. LC will be very difficult for these cases, especially for the emergency cases. Emergency laparoscopic cholecystectomy can be successfully performed with clear exposure of the anatomy of the Calot's triangle. To the best of our knowledge, such giant gallstone has been rarely reported. CONCLUSION: We have proven that for the rare giant gallstone about 10 cm in size, LC is a feasible option if the anatomy of the Calot's triangle can be clearly exposed; otherwise, open cholecystectomy is a safe choice.