Incidental diagnosis of gallbladder carcinoma during or after routine cholecystectomy: A retrospective study with emphasis on clinicopathologic findings

Table 3 Clinicopathological descriptions of gallbladder specimens and metastatic outcomes for patients with incidental gallbladder adenocarcinoma, n (%)

Item	n = 42
Macroscopic characteristics
Associated with gallstones	34 (81)
Thickened wall	7 (17)
Growth or polyp	10 (24)
AJCC Staging
T1	5 (12)
T2	20 (48)
T3	16 (38)
Not recorded	1 (2)
Adenocarcinoma differentiation
Well-differentiated	7 (17)
Moderately differentiated	18 (43)
Poorly differentiated	17 (40)
Signet ring cell morphology	3 (7.1)
Peritoneal metastasis	1 (2.4)
Lymph node involvement	3 (7.1)

AJCC: American Joint Committee on Cancer.