| Theme | Villous Tumor | |
|---|---|---|
| Title | Endoscopic and radiographic diagnosis of villous tumor of the colorectum | |
| Publish Date | 2001/01 | |
| Author | Miwa Sada | Department of Gastroenterology, Kitasato University East Hospital |
| Author | Masahiro Igarashi | Department of Gastroenterology, Kitasato University East Hospital |
| Author | Kiyonori Kobayashi | Department of Gastroenterology, Kitasato University East Hospital |
| Author | Tomoe Katsumata | Department of Gastroenterology, Kitasato University East Hospital |
| Author | Hiroyuki Mitomi | Department of Pathology, Kitasato University East Hospital |
| [ Summary ] | We studied the endoscopic and radiographic diagnosis of villous tumors. Fourteen villous tumors were included in this analysis. A villous tumor was defined as a broad-based elevation, with a villous or fine granular surface seen macroscopically and as a protrusion more than 70% of which was composed of villous structure, when viewed microscopically. The endoscopic findings of villous tumors were as follows; broad-based elevation, villous or fine granular surface, a shaggy appearance and a great deal of adherent mucus on the mucosal surface. However, diagnosis of depth of invasion was difficult, because the lesions were large and could not be observed in whole. It is important to observe the findings as ulcerations, erosions, depressions and destroyed mucosal area patterns. Those findings suggested to submucosal invasive or advanced cancer. Radiological findings of villous tumors were reticular or granular patterns with feathery margins. There were no deformities of the lesions in the lateral view with a none wedge shape, of the semilunal and trapezoid type which fit Ushio's criteria, making X-ray diagnosis of depth of invasion useful. It was concluded that the diagnosis of villous tumors is not so difficult, however, the diagnosis of depth of invasion with endoscopy or barium enema studies is sometimes difficult. Therefore, to diagnose the depth of invasion, both examinations should be performed. |
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