若杉 聡¹, 大栗 茂芳¹, 平田 信人¹, 関山 和彦¹, 井上 和明¹, 与芝 真¹, 藤田 力也¹, 寺町 貴子², 大野 一夫², 大橋 真由美², 近藤 礼子², 大矢 和博²

Satoshi WAKASUGI¹, Shigeyoshi OOGURI¹, Nobuto HIRATA¹, Kazuhiko SEKIYAMA¹, Kazuaki INOUE¹, Makoto YOSHIBA¹, Rikiya FUJITA¹, Takako TERAMACHI², Kazuo OONO², Mayumi OOHAYASHI², Reiko KONDOU², Kazuhiro OOYA²

¹昭和大学藤が丘病院消化器内科, ²昭和大学藤が丘病院超音波センター

¹Division of Gastroenterology Department of Internal Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama 227, Japan, ²Ultrasonography Center Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama 227, Japan

キーワード : 7.5 MHz Annular array probe, Diffuse liver disease, Flag sign, Hairbrush sign, Ultrasound

We used a 7.5 MHz annular array probe to diagnose 70 cases of diffuse liver disease. Degree of irregularity of liver surface detected by this probe and that observed on laparoscopy were related. The probe also visualized low echoic belts from the depressed area of the liver surface. We term this finding the hairbrush sign (HS). Clinically, this sign was positive when the liver surface was irregular, especially in cases of liver cirrhosis. The hairbrush sign appeared most regularly in autopsy livers with advanced liver cirrhosis. The sign, however, did not always appear when the liver surface was irregular. These observations suggest that the hairbrush sign is more likely to be associated with advanced liver fibrosis than with liver surface irregularity.