Tumefactive sludge in gall bladder can cause diagnostic dilemma. A patient presented with large vascular echogenic mass in gall bladder and a gallstone on ultrasonography. MRCP favored it to be a benign mass due to sludge. Laparoscopic Cholecystectomy was done carefully preventing any spillage. Histopathology confirmed the diagnosis of chronic calculus cholecystitis with no evidence of malignancy.