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Journal of Medical Ultrasonics

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1991 - Vol.18

Vol.18 No.02

Original Article(原著)

(0168 - 0173)


Ultrasonographic Features of Papillary Adenoma of the Gallbladder

新澤 真理1, 伊藤 万寿雄1, 向島 偕2, 石田 秀明1, 石岡 知憲1, 中村 純一1, 長沼 敏雄1, 森川 パブロ1, 正宗 研3

Makoto NIIZAWA1, Masuo ITOH1, Tsuyoshi MUKOHJIMA2, Hideaki ISHIDA1, Tomonori ISHIOKA1, Junichi NAKAMURA1, Toshio NAGANUMA1, Pablo MORIKAWA1, Osamu MASAMUNE3

1 , 2秋田県成人病医療センター消化器科, 3秋田大学第1内科

1 , 2Department of Gastroenterology, Akita Medical Center, 3First Department of Internal Medicine, Akita University, School of Medicine

キーワード : Ultrasonography, Papillary adenoma, Gallbladder

The sonographic features of gallbladder adenoma (GA) have not been thoroughly reported. In this study, sonograms and histological characteristics were compared in three cases of histologically proven GA, including one case with a small cancer focus within the lesion.
This study revealed that the GA was usually imaged on the sonogram as flat, or mushroom-shaped hypo-or isoechoic polypoid lesion containing small anechoic spots.
Although differential diagnosis of gallbladder polypoid lesions by ultrasound alone remains difficult, sonography assists in distinguishing GA from gallbladder cholesterol polyps, the most common polypoid lesion of the gallbladder, which is usually imaged as multiple hyperechoic lesions containing small, strongly reflective spots.