| Theme |
Strategy of colon cancer screening |
| Title |
Barium enemas in mass surveys for detection of colorectal cancer |
| Author |
Masaaki Matsukawa |
Department of Gastroenterology, Toyosu Hospital, Showa University |
| Author |
Takahiko Kouda |
Department of Gastroenterology, Toyosu Hospital, Showa University |
| Author |
Atsushi Satou |
Department of Gastroenterology, Toyosu Hospital, Showa University |
| Author |
Eifu Ogawa |
Department of Gastroenterology, Toyosu Hospital, Showa University |
| Author |
Masahiro Wada |
Department of Gastroenterology, Toyosu Hospital, Showa University |
| [ Summary ] |
An examination of mass survey information includes date from barium enemas or / and endoscopy. Radiological false-negative cancers are those of the type II cancer or cancer less than 1cm in diameter or on the right side of the colon. In our experience, we have rarely overlooked cancer over 2.1 cm in diameter when using barium enemas. We have studied differential diagnoses by radiograph for cancers between m/sm1 and sm2/3 (invasive cancer). An invasive cancer of the type Ip has an uneven nodular surface, or/and a depressed area. Invasive cancer of this Is type has a double margin or a depressed area. In invasive cancer of the type II, we have not noted any charactenstic findings. In invasive type IIc cancer, a relatively wide marginal elevation around the depressed area, a deep barium fleck or converged folds are observed with radiology. These radiological findings for invasive cancer can be demonstrated by well prepared conditions for barium enema investigation. |