| Theme |
Non-neoplastic polys of the colon and rectum |
| Title |
Possibility of pit pattern diagnosis for non-neoplastic lesions |
| Author |
Hiro-o Matsushita |
Department of Gastroenterology, Akita Red Cross Hospital |
| Author |
Hiro-o Yamano |
Department of Gastroenterology, Akita Red Cross Hospital |
| Author |
Yasushi Imai |
Department of Gastroenterology, Akita Red Cross Hospital |
| Author |
Masaru Nakazato |
Department of Gastroenterology, Akita Red Cross Hospital |
| Author |
Satoshi Maeda |
Department of Gastroenterology, Akita Red Cross Hospital |
| Author |
Ken Saitou |
Department of Pathology, Akita Red Cross Hospital |
| Author |
Sadahiro Hosobe |
Department of Pathology, Akita Red Cross Hospital |
| Author |
Kouichi Nara |
Department of Pathology, Akita Red Cross Hospital |
| Author |
Akiyoshi Tayama |
Department of Pathology, Akita Red Cross Hospital |
| Author |
Tomoyuki Asari |
Department of Pathology, Akita Red Cross Hospital |
| [ Summary ] |
The aim of this study was to clarify the magnifying colonoscopic features of non-neoplastic lesions. We evaluated magnifying colonoscopic findings of 120 non-neoplastic lesions (19 juvenile polyps, 58 hyperplastic polyps, one Peutz-Jeghers type polyp and 42 inflammatory polyps) based on pathological diagnoses. The features of juvenile polyps were tubular or roundish pits with an unclear, white margin around the pit hole. The main surface structure features (pit pattern) in hyperplastic polyps were star-like pits. Ten hyperplastic polyps had large, wide pits with clear white margins around the pit hole. We recognized that the main surface features of Peutz-Jeghers type polyps was large tubular pits which had many branches. We termed these, as "sea dragons". The main feature of sixteen inflammatory polyps was round pits, the others having star-like pit patterns, tubular pit patterns and regular epithelium without pit structures. This retrospective study was the first trial to clarify the magnifying colonoscopic features of non-neoplastic lesion and suggests that observation, using a magnifying colonoscope could us lead to the attainment of higher quality diagnoses for non-neoplastic lesions. |