Yamashita Yasunobu, Ito Kei, Noda Yutaka, Kobayashi Go, Obana Takashi, Horaguchi Jun, Kato Yuhei, Koshita Shinsuke, Kanno Yoshihide, Ogawa Takahisa, Fujita Naotaka
Department of Gastroenterology, Sendai City Medical Center.
Nihon Shokakibyo Gakkai Zasshi. 2011 Jul;108(7):1280-7.
A 40-year-old woman was hospitalized because of acute pancreatitis. CT showed a monolocular cyst thought to be a pseudocyst. The patient was followed as an outpatient. The size of the cyst decreased 6 years later. Ultrasonography 10 years later demonstrated an enlarged cyst with a cyst-in-cyst formation. A tendency to increase in size and the irregular wall thickening indicated that the cyst was a malignant mucinous cystic neoplasm (MCN) and distal pancreatectomy was performed. The tumor was diagnosed histologically as a mucinous cystadenoma. A case of MCN resected after long-term follow-up is extremely rare. The present case is thought to be important for elucidation of the natural history of MCNs.
一名40岁女性因急性胰腺炎入院。CT显示一个单房囊肿，考虑为假性囊肿。该患者作为门诊病人接受随访。6年后囊肿大小缩小。10年后超声检查显示囊肿增大并形成囊内囊。囊肿大小有增大趋势且壁不规则增厚，提示该囊肿为恶性黏液性囊性肿瘤（MCN），遂行胰体尾切除术。术后病理诊断为黏液性囊腺瘤。长期随访后切除的MCN病例极为罕见。本病例对于阐明MCN的自然病程具有重要意义。
