Ductectatic-type Mucinous Cystadenoma and Cystadenocarcinoma of the Human Pancreas: A Novel Clinicopathological Entity |
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| Authors: | Akio Yanagisawa Kazuhiko Ohashi Masaharu Hori Kunio Takagi Tomoyuki Kitagawa Haruo Sugano Yo Kato |
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| Affiliation: | Department of Pathology, Cancer Institute, Kami-Ikebukuro 1–37–1, Toshima-ku, Tokyo 170;Department of Internal Medicine, Cancer Institute, Kami-Ikebukuro 1–37–1, Toshima-ku, Tokyo 170;Department of Surgery, Cancer Institute, Kami-Ikebukuro 1–37–1, Toshima-ku, Tokyo 170;Department of Surgery, Hayashi Hospital, Daikyo 27, Shinjuku-ku, Tokyo 160 |
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| Abstract: | A new type of mucinous cystic pancreatic neoplasm is described. The lesions, which have been recognized only recently with the progress of diagnostic techniques and have not previously been described in the literature, are characterized by multilocular cysts with papillary proliferation of the lining epithelium. They occur exclusively in the head and body, predominantly in males, and coexistence of well-differentiated adenocarcinoma as well as adenoma components is frequently encountered. These lesions are quite different from hitherto described mucinous cystic neoplasms of pancreas, not only in terms of gross features but also with regard to intrapancreatic location, and sex and age distributions. We propose to classify these lesions as a new pancreatic tumor entity: the ductectatic-type mucinous cystadenoma/cystadenocarcinoma. |
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| Keywords: | Pancreas Mucinous cystic neoplasm Pancreatic neoplasm |
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