Epidermoid cyst of the spleen preoperatively diagnosed as a mucinous cystic neoplasm in the tail of the pancreas

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  • 膵尾部粘液性嚢胞腫瘍との鑑別が困難であった脾類表皮嚢胞の1例

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Abstract

<p>A 47-year-old woman presented with a cystic lesion in the tail of the pancreas, and was referred for further investigation. Contrast-enhanced computed tomography scan revealed a multilocular cyst with septa, measuring 46mm in diameter. On magnetic resonance imaging, the cyst had heterogeneous hyperintensity on T2-weighted images. Contrast-enhanced endoscopic ultrasound revealed a cyst-in-cyst-like structure with cystic portions giving a honeycomb appearance. The lesion was diagnosed as a mucinous cystic neoplasm in the tail of the pancreas and treated with laparoscopic distal pancreatectomy. Histopathologically, the cyst originated in the spleen and was invaginated into the tail of the pancreas. The cystic wall was lined by stratified squamous epithelium and the final diagnosis was an epidermoid cyst of the spleen. An epidermoid cyst of the spleen invaginating into the tail of the pancreas should be taken into consideration when a cystic lesion is located at the very distal end of the pancreas.</p>

Journal

  • Suizo

    Suizo 35 (1), 91-96, 2020-02-28

    Japan Pancreas Society

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