Port site recurrence or peritoneal seeding is a fatal complication following laparoscopic cholecystectomy for gallbladder carcinoma. The aims of this retrospective analysis were to determine the association of gallbladder perforation during laparoscopic cholecystectomy with port site/peritoneal recurrence and to determine the role of radical second resection in the management of gallbladder carcinoma first diagnosed after laparoscopic cholecystectomy. A total of 28 patients undergoing laparoscopic cholecystectomy for gallbladder carcinoma were analyzed, of whom 10 had a radical second resection. Five patients had recurrences; port site/peritoneum recurrence in 3 and distant metastasis in 2. The incidence of port site/peritoneal recurrence was higher in patients with gallbladder perforation (3/7, 43%) than in those without (0/21, 0%) (p = 0.011). The outcome after laparoscopic cholecystectomy was worse in 7 patients with gallbladder perforation (cumulative 5-year survival of 43%) than in those without (cumulative 5-year survival of 100%) (p <0.001). Among 13 patients with a pT2 tumor, the outcome after radical second resection (cumulative 5-year survival of 100%) was better than that after laparoscopic cholecystectomy alone (cumulative 5-year survival of 50%) (p = 0.039), although there was no survival benefit of radical second resection in the 15 patients with a pT1 tumor (p = 0.65). In conclusion, gallbladder perforation during laparoscopic cholecystectomy is associated with port site/peritoneal recurrence and worse patient survival. Radical second resection may be beneficial for patients with pT2 gallbladder carcinoma first discovered after laparoscopic cholecystectomy.