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Basket pattern blood flow signals discovered in a case of splenic hamartoma by power Doppler ultrasonography

World Journal of Gastroenterology 2005年第33期11卷 5235-5238页

作者： Shigeo Nakanishi Katsuya Shiraki Kouji Yamamoto Takeshi Nakano Mutsumi Koyama Takatsugu Yano Takayuki Sanda Hisao Tamaki Tadanori Hirano kazuo fukudome Akinori Ishihara First Department of Internal Medicine Mie University School of Medicine Tsu Mie 514-8507 Japan Department of Internal Medicine Matsusaka General Hospital Matsusaka Mie 102 Japan First Department of Internal Medicine Mie University School of Medicine TsuMie 514-8507Japan Department of Internal Medicine Matsusaka General Hospital Matsusaka Mie 102 Japan Department of Surgery Matsusaka General Hospital Matsusaka Mie 102 Japan Tadanori Hirano Department of Radiology Matsusaka General Hospital Matsusaka Mie 102 Japan First Department of Internal Medicine Mie University School of Medicine Tsu Mie 514-8507 Japan Department of Pathology Matsusaka General Hospital Matsusaka Mie 102 Japan

We present the gray-scale ultrasonography (GSUS), power Doppler ultrasonography (PDUS), abdominal computed tomography (CT), and magnetic resonance imaging (MRI) findings for a case of splenic hamartoma in a 27-year-old man, showing a ψ 50 mm homogeneous, iso- and hypo-echoic splenic mass with evidence of a small plural cystic lesion.This splenic hamartoma showed increased vascularity on power Doppler sonograms. PDUS showed multiple circular blood flow signals inside the mass (i.e. a basket pattern),which was consistent with the small plural cystic lesion shown by GSUS. Spectral analysis also confirmed arterial and venous flow. CT scans showed that the mass had lowdensity relative to the normal spleen and MRI showed that the mass was isodense, relative to the normal spleen.Therefore, CT and MRI are not useful for the diagnosis of splenic hamartoma. Ultrasonography can be used to diagnose splenic hamartoma without administration of a contrast material and therefore is an indispensable method for the diagnosis of splenic hamartoma.

关键词：血液流动信号脾脏错构瘤多普勒超声波检查 CT检查 MRI检查

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