| Theme | Villous Tumor | |
|---|---|---|
| Title | Clinical characteristics of villous tumors of colorectum | |
| Publish Date | 2001/01 | |
| Author | Kyoko Ohkubo | Department of Gastroenterology, Sendal City Medical Center |
| Author | Atsuo Matsunaga | Department of Gastroenterology, Sendal City Medical Center |
| Author | Mikiko Nomura | Department of Gastroenterology, Sendal City Medical Center |
| Author | Kiyoshi Uchimi | Department of Gastroenterology, Sendal City Medical Center |
| Author | Dai Hirasawa | Department of Gastroenterology, Sendal City Medical Center |
| Author | Takashi Suzuki | Department of Gastroenterology, Sendal City Medical Center |
| Author | Shigeharu Senoo | Department of Gastroenterology, Sendal City Medical Center |
| Author | Yutaka Noda | Department of Gastroenterology, Sendal City Medical Center |
| Author | Naotaka Fujita | Department of Gastroenterology, Sendal City Medical Center |
| [ Summary ] | To clarify the clinical characteristics of villous tumor of the colon (VT), we reviewed 36 cases of VT, experienced in our department, along with a review of the pertinent literature. Pragmatically, there is no established definition of VT. This could cause confusion and controversy when analyzing this disease entiry. In our series, 67% of the patients showed no symptoms, which strongly opposes the data appearing in the literature (5-25%). This is probably due to the increasingly frequent application of colonoscopy.VT, an uncommon neoplasm, occurs in the sigmoid colon or rectum in 65% to 94% of cases. A typical VT is reportedly large in size and has a broad base, with villous projections on its surface. However, the average size in our patient group was much smaller than that reported in the literature (19.4+/- 16.9mm v.s. 37-74mm), only 35% of them having villous fronds on the surface. VT is known to have a high malignancy potential. Some researchers have suggested that the high frequency of malignancy is due to the large size of VTs. To facilitate the planning of adequate treatment strategy, a definition of VT in relation to the malignancy potential, as an independent condition, is awaited. |
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