Case Reports

Surgery Today

, Volume 25, Issue 12, pp 1043-1046

Lymphoepithelial cyst of the pancreas: A preoperatively diagnosed case based on an aspiration biopsy

  • Yaushi RinoAffiliated withDepartment of Surgery, Hadano Red Cross Hospital
  • , Toshio MorohoshiAffiliated withDepartment of Pathology, Showa University School of Medicine
  • , Ken-ichi FunoAffiliated withDepartment of Pathology, Showa University School of Medicine
  • , Toshio ImadaAffiliated withDepartment of Surgery, Yokohama City University School of Medicine
  • , Yuji YamamotoAffiliated withDepartment of Surgery, Yokohama City University School of Medicine
  • , Takao JojimaAffiliated withDepartment of Surgery, Hadano Red Cross Hospital
  • , Masao AbeAffiliated withDepartment of Surgery, Hadano Red Cross Hospital
  • , Hiroshi TakeAffiliated withDepartment of Surgery, Hadano Red Cross Hospital
  • , Akihiko MatsumotoAffiliated withDepartment of Surgery, Yokohama City University School of Medicine

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Abstract

This paper reports an extremely rare case of lymphoepithelial cyst of the pancreas. The patient, a 58-year-old man with no subjective symptoms, was found to have a pancreatic tumor during a physical examination. He visited our clinic and was admitted for a follow-up examination. Based on the ultrasonographic findings, superselective angiography, and aspiration biopsy, an epidermoid cyst was diagnosed. Enucleation was easily performed. Macroscopically, this cyst resembled an atheroma. Histologically, the cavity of the cyst was lined with a squamous epithelium with a nucleated layer and below that, lymphatic tissue. No malignancy was found. Tumors of the pancreas with a squamous epithelial covering are extremely rare; only a few such cases have been reported in the literature. As of 1991, only 12 cases, including the present case, had been reported. With the advances in diagnostic techniques, the detection of pancreatic tumors is expected to improve. This paper reports a case in which the use of an aspiration biopsy and superselective angiography proved to be useful in making an accurate diagnosis.

Key Words

lymphoepithelial cyst pancreatic cyst aspiration biopsy superselective angiography