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  • Title: Unsuspected gallbladder cancer diagnosed by laparoscopic cholecystectomy: a clinicopathological study.
    Author: Mori T, Souda S, Hashimoto J, Yoshikawa Y, Ohshima M.
    Journal: Surg Today; 1997; 27(8):710-3. PubMed ID: 9306584.
    Abstract:
    Laparoscopic cholecystectomy (LC) for gallstones has become a popular treatment modality, but LC for gallbladder cancer is not yet established and its prognosis is still unknown. We clinicopathologically studied unsuspected gallbladder cancer presenting at pathologic evaluation after LC. The entire cross section of gallbladders after 456 LCs was histologically examined. The presence of malignant lesions was confirmed in 13 (2.85%) of 456 cases. The preoperative diagnoses were gallstones in 5 patients, gallbladder polyps in 5, gallstones with gallbladder polyps in 2, and gallstones with adenomyomatosis in 1. The carcinoma had invaded the mucosa in 7, the proper muscle in 2, and the subserosa in 3; the serosa was exposed in 1. The tumor size ranged from 2 mm to the entire gallbladder. An additional resection was performed in 2 patients. During the mean follow-up period of 25.9 months, 1 patient died of recurrence at 8 months while 1 demonstrated recurrence at the port site 1 year after surgery. No other patients have had any recurrence to date. Since early gallbladder cancer removed laparoscopically can be expected to have a satisfactory outcome, diagnostic and therapeutic LC is recommended in cases where total biopsy is indicated. However, in every case, extreme caution needs to be exercised to prevent the dissemination and implantation of cancer cells at the port site.
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