Online Journal
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Journal of Medical Ultrasonics

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1985 - Vol.12

Vol.12 No.01

Original Article(原著)

(0001 - 0007)


Ultrasonographic Diagnosis of the Polypoid Lesions in the Gallbladder

渡辺 文利1, 花井 洋行1, 金子 栄蔵1, 本田 西男1, 錦野 光浩2, 杉山 高3, 秋山 敏一3

Fumitoshi WATANABE1, Hiroyuki HANAI1, Eizo KANEKO1, Nishio HONDA1, Mitsuhiro NISHIKINO2, Kou SUGIYAMA3, Toshikazu AKIYAMA3

1浜松医科大学第一内科, 2藤枝市立志太総合病院外科, 3藤枝市立志太総合病院起音波検査部

1First Department of Internal Medicine, Hamamatsu University, 2Department of Surgery, Shida Municipal General Hospital, 3Ultrasound Laboratory Section, Shida Municipal General Hospital

キーワード : Ultrasound, Gallbladder (:polyp)

Polypoid lesions in the gallbladder (PLG), which were less than 2 cm in diameter, were detected in 157 out of 12,720 patients who underwent ultrasonographic examination (US).
Diagnostic criteria of the PLG by US are as follows; (1) the lesions are to be fixed on the gallbladder wall, (2) the lesions do not cast acoustic shadows.
The smallest size of the PLG detected by US was 3 mm in diameter and 95% of all the PLGs were less than 10 mm.
Sixty three percent of them were located on the body of the gallbladder, 27% on the neck and 10% on the funds.
US and PTC were most reliable. If we compared the diagnostic accuracy among US and the other methods of cholecystography like DIC, ERC and PTC.
Eighteen out of 157 patients underwent surgical intervention. Histology of them revealed 9 cholesterol, 3 hyperplastic polyp, 1 cholesterol polyp combined with hyperplastic polyp, 1 inflammatory, 2 cholesterol polyp combined with adenomyomatosis, 1 adenomatous polyp combined with cholesterol polyp and 1 early carcinoma.
The echo levels of the cholesterol polyps are higher than that of the liver parenchyma, which is sonographically indistinguishable from that of polypoid carcinoma.