Biopsy and polypectomy specimens: histological results of the primary and reference pathologists
| No | Primary pathologist (biopsy) | Primary pathologist (ectomy) | Reference pathologist (biopsy) | Reference pathologist (ectomy) |
|---|---|---|---|---|
| *Concomitant presence of tumour-like lesions and neoplastic foci. | ||||
| Foc. fov., focal foveolar; Inflamm., inflammatory. | ||||
| Relevant overestimation by the primary pathologist: 5 | ||||
| 1 | Tubular adenoma | Hyperplastic polyp | Foc. fov. hyperplasia | Foc. fov. hyperplasia |
| 2 | Tubular adenoma | Hyperplastic polyp | Hyperplastic polyp | Hyperplastic polyp |
| 3 | Tubular adenoma | Hyperplastic polyp | No polyp tissue | No polyp tissue |
| 4 | No polyp tissue | Tubular adenoma | Hyperplastic polyp | Hyperplastic polyp |
| 5 | Tubular adenoma | Hyperplastic polyp and tubular adenoma | Hyperplastic polyp | Hyperplastic polyp |
| Relevant underestimation by the primary pathologist: 4 | ||||
| 6 | Foc. fov. hyperplasia | Tubular adenoma | Tubular adenoma | Tubular adenoma |
| 7* | Hyperplastic polyp | Hyperplastic polyp and microcarcinoid | Hyperplastic polyp | Hyperplastic polyp and tubular adenocarcinoma |
| 8 | Foc. fov. hyperplasia and tubular adenoma | Tubular adenoma | Tubular adenocarcinoma | Tubular adenocarcinoma |
| 9 | Foc. fov. hyperplasia | Hyperplastic polyp | Possible Peutz-Jeghers polyp | Peutz-Jeghers polyp |
| No relevant differences between primary and reference pathologist: 12 | ||||
| 10 | Possible hyperplastic polyp | Hamartoma | No polyp tissue | Inflamm. fibroid polyp |
| 11 | Tubular adenoma | Foc. fov. hyperplasia | Tubular adenoma | No polyp tissue |
| 12 | Tubular adenocarcinoma | Tubulovillous adenoma | Tubular adenocarcinoma | Tubular adenocarcinoma |
| 13 | Hyperplastic polyp | Foc. fov. hyperplasia and carcinoid tumour | Hyperplastic polyp | Carcinoid tumor |
| 14 | Hyperplastic polyp | Tubular adenoma | Foc. fov. hyperplasia | Tubular adenoma |
| 15 | Pyloric gland adenoma | Tubular adenocarcinoma | Tubular adenocarcinoma | Tubular adenocarcinoma |
| 16 | Tubulovillous adenoma | High grade intraepithelial neoplasia | Tubular adenocarcinoma | Tubular adenoma |
| 17 | Tubular adenoma | Hyperplastic polyp and tubular adenoma | Tubular adenoma | Tubular adenoma and possible tubular adenocarcinoma |
| 18 | Possible hyperplastic polyp | Hamartoma | No polyp tissue | Brunner's gland heterotopia |
| 19* | Tubular adenocarcinoma | Hyperplastic polyp and tubular adenocarcinoma | Tubular adenocarcinoma | Hyperplastic polyp and tubular adenocarcinoma |
| 20* | No polyp tissue | Tubular adenocarcinoma | Possible hyperplastic polyp | Hyperplastic polyp and tubular adenocarcinoma |
| 21* | Hyperplastic polyp | Hyperplastic polyp and tubular adenocarcinoma | Hyperplastic polyp | Hyperplastic polyp and tubular adenocarcinoma |