Surgical Case Reports

Table 1 A search for Japanese literature showed 46 reported cases of gallbladder metastasis from RCC

From: Gallbladder metastasis of renal cell carcinoma presenting as a hypervascular polypoid lesion: case report of two cases with immunohistochemical analysis

Parameter	No. of patients (%)	Median (range)
Sex	Male, 37 (81)
Sex	Female, 9 (19)
Age		64.8 years (43–80)
Symptom	+, 10 (22)
Symptom	−, 36 (78)
Timing	Syn, 12 (26)
Timing	Meta, 34 (74)	6 years (0.2–27)^a
Stage^b	I, 11 (23.9)
	II, 5 (10.9)
	III, 3 (6.5)
	IV, 13 (28.3)
	Not reported, 14 (30.4)
Operation procedure	EC, 8 (17.4)
	OC, 25 (54.3)
	LC, 13 (28.3)
Maximum diameter		18 mm (5–75)
Macroscopic findings	Peduncuated, 37 (80)
Macroscopic findings	Mass, 9 (20)
Metastasis to other organs	+, 28 (61)
Metastasis to other organs	−, 18 (39)
Outcome	Alive, 31 (67)	10 months (1–96)^c
	Dead, 6 (13)
	Not reported, 9 (20)

Syn synchronous, Meta metachronous, EC extended cholecystectomy, OC open cholecystectomy, LC laparoscopic cholecystectomy
^aDuration to detect metachronous gallbladder metastasis from nephrectomy
^bPost-nephrectomy staging
^cFollow-up period

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