Right sided retroperitoneal splenosis

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• 作者：Wong Ka Man Lily ; Loke KL Tony ; Au Yeung WS Andrea
• 关键词：Splenosis ; Retroperitoneal mass ; Hepatorenal fossa mass ; Wandering spleen ; Accessory spleen
• 刊名：European Journal of Radiology Extra
• 出版年：2010
• 出版时间：October 2010
• 年：2010
• 卷：76
• 期：1
• 页码：e19-e21
• 全文大小：551 K

文摘

Splenosis are usually located in the peritoneal cavity or in the thoracic region in case of diaphragmatic rupture [1], [2] and [3]. We report a case of right sided retroperitoneal splenosis, which to our knowledge, is the second case ever reported in the literature [1], [2], [3] and [4].

A 65-year-old man underwent laparotomy more than 20 years ago because of a traffic accident. Interval imaging studies of the abdomen were done. A nodular lesion was first detected at the hepatorenal fossa by ultrasound (US). The subsequent computer tomography (CT) scan showed attenuation and enhancement pattern similar to the liver in all phases and was initially diagnosed as a pedunculated liver lobe. Signal intensities were different to liver on subsequent magnetic resonance imaging (MRI) and the lesion was retroperitoneal in position.

As most retroperitoneal solid masses are malignant, surgical removal was advised. Pathology confirmed the presence of splenic tissue.

The true incidence of splenosis remains unknown, with a reported incidence ranging from 26 % to 67 % . The splenosis is most commonly found in the peritoneal cavity unless the retroperitoneal reflection is breeched [2], [3] and [4].

Differentials for splenosis such as accessory spleen and wandering spleen; and differentials for a retroperitoneal solid mass would be further discussed in our case report [5] and [6].