慢性膵炎にみられた膵リンパ上皮嚢胞 (Lymphoepithelial cyst) の1例 A CASE OF A LYMPHOEPITHELIAL CYST OF THE SPLEEN IN A PATIENT WITH CHRONIC PANCREATITIS
The patient was a 73-year-old man who had been treated for chronic pancreatitis in the department of internal medicine in our hospital on an ambulant basis since 3 years 2 months earlier. When he was first seen, a cystic mass on the dorsal aspect of the pancreas was found by abdominal CT scan and thereafter the clinical course had been followed with a suspicion of a pancreatic pseudocyst. The cyst had started to enlarge gradually since one year earlier and the serum CA19-9 increased to an abnormally high level (5240U/ml) as well. Due to the difficulty in differentiation from a malignant tumor, the patient was referred to our department for the purpose of operation. Upon laparotomy, the tumor on the dorsal aspect of the pancreas was about 4cm in diameter and there were not so many inflammatory findings in the surrounding tissues. Considering a possibility of a tumorous lesion, resection of the pancreatic body and tail with splenectomy, cholecystectomy, and anastomosis of the pancreatic duct to the stomach were performed. Histopathologically the lesion was composed of a large and a small cyst and the cystic wall was covered with stratified squamous epithelium with lymphatic follicle in places. Lymphoepithelial cyst was thus diagnosed. The patient's postoperative course was uneventful and the CA19-9 level was normalized to 11.4U/ml 2 months after the operation.<BR>This time we experienced a case of a lymphoepithelial cyst which was incidentally found in the course of chronic pancreatitis and then was operated on with a suspicion of a pancreatic pseudocyst. This case is considered to be suggestive in inferring the etiology of the cyst because the lesion enlarged with time and was associated with chronic pancreatitis.
- 日本臨床外科学会雑誌 = The journal of the Japan Surgical Association
日本臨床外科学会雑誌 = The journal of the Japan Surgical Association 69(7), 1786-1790, 2008-07-25
Japan Surgical Association