Endoscopic ultrasonography for the differential diagnosis of polypoid gallbladder lesions

	Number of patients	Histologic diagnosis
	Number of patients	Cholesterol polyp	Adenomyomatosis	Neoplastic
Preoperative diagnosis with endoscopic US
Cholesterol polyp	34	34	0	0
Adenomyomatosis	7	0	7	0
Neoplastic	17	2	0	15
Preoperative diagnosis with transabdominal US
Cholesterol polyp	24	24	0	0
Adenomymatosis	5	0	5	0
Neoplastic	29	12	2	15

US: ultrasound.

Data from: Sugiyama, M, Xie, XY, Atomi, Y, Saito, M, Ann Surg 1999; 229:498.

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