Nakanishi S, Shiraki K, Yamamoto K, Nakano T, Koyama M, Yano T, Sanda T, Tamaki H, Hirano T, Fukudome K, Ishihara A. Basket pattern blood flow signals discovered in a case of splenic hamartoma by power Doppler ultrasonography. World J Gastroenterol 2005; 11(33): 5235-5238 [PMID: 16127761 DOI: 10.3748/wjg.v11.i33.5235]
Corresponding Author of This Article
Katsuya Shiraki, MD, PhD, First Department of Internal Medicine, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan. katsuyas@clin.medic.mie-u.ac.jp
Article-Type of This Article
Case Report
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Shigeo Nakanishi, Katsuya Shiraki, Kouji Yamamoto, Takeshi Nakano, First Department of Internal Medicine, Mie University School of Medicine, Tsu, Mie 514-8507, Japan
Shigeo Nakanishi, Mutsumi Koyama, Department of Internal Medicine, Matsusaka General Hospital, Matsusaka, Mie 102, Japan
Takatsugu Yano, Takayuki Sanda, Hisao Tamaki, Department of Surgery, Matsusaka General Hospital, Matsusaka, Mie 102, Japan
Tadanori Hirano, Department of Radiology, Matsusaka General Hospital, Matsusaka, Mie 102, Japan
Kazuo Fukudome, Akinori Ishihara, Department of Pathology, Matsusaka General Hospital, Matsusaka, Mie 102, Japan
Author contributions: All authors contributed equally to the work.
Correspondence to: Katsuya Shiraki, MD, PhD, First Department of Internal Medicine, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan. katsuyas@clin.medic.mie-u.ac.jp
Telephone: +81-59-231-5015 Fax: +81-59-231-5201
Received: September 10, 2004 Revised: January 1, 2005 Accepted: January 5, 2005 Published online: September 7, 2005
Abstract
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 φ 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 low-density 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.
