@article{oai:nagasaki-u.repo.nii.ac.jp:00020051,
 author = {Shimoyama, Takatoshi and Shimizu, Teruhisa and Kusano, Hiroyuki and Nanashima, Atsushi and Uchikawa, Tetsuya and Matsuo, Seiji and Azuma, Kohji and Honjo, Seiji and Hisano, Hiroshi and Kida, Harumi and Yoshida, Ryuichiro and Nakagoe, Tohru and Miura, Toshio and Tomita, Masao and Kawaguchi, Akio},
 issue = {1-3},
 journal = {Acta medica Nagasakiensia},
 month = {Oct},
 note = {In order to more fully understand the morphological characteristics of villous tumors of the colorectum, the vascular patterns of six colorectal resection specimens were microangiographically studied. Grossly, villous adenomas were of two main types: pedunculated polyps and carpet-like lesions. Pedunculated villous adenomas had many large stalk vessels in a broad short pedicle, representing a large blood supply to the tumor. The carpet-like lesions were composed of continuous clusters of polyps with stalk vessels and the flat elevated lesions among polyps and at the periphery showed similar vascular patterns to the mucosa of normal colon. In lesions with cancer invasive to the proper muscle layer, scattered ulcerations due to the destruction of polyps were also observed, corresponding to at least a Dukes B lesion. The above findings could represent very important additional information for endoscopic treatment or local excision for the prevention of hemorrhagic complicatios or incomplete removal of tumor., Acta medica Nagasakiensia. 1994, 39(1-3), p.172-175},
 pages = {172--175},
 title = {Vascular Patterns of Villous Tumors of the Colorectum},
 volume = {39},
 year = {1994}
}