Table 3 Characteristics of individual cases
From: Transanal Minimally Invasive Surgery (TAMIS) in Qatar: initial experience
No | Age group / Sex | Location (cm) | Pre-operative HP | Indication | Tumor size (cm) | Post-operative HP | Need for further management |
|---|---|---|---|---|---|---|---|
1 | 35–45/ S2 | 7 | Tubulovillous adenoma with low grade dysplasia | Treatment | 2.8 × 2.5 | Tubulovillous adenoma | None |
2 | 45–55/ S2 | 18 | Serrated adenoma with low grade dysplasia | Treatment | 1.5 × 0.5 | hyperplastic polyp | None |
3 | 55–65/ S1 | 5 | Moderately differentiated adenocarcinoma | Treatment | 2.2 × 1.7 | pT0Nx adenocarcinoma | None |
4 | 55–65/ S2 | 10 | Serrated adenoma | Treatment | 2.5 × 2.2 | Serrated adenoma | None |
5 | 55–65/ S2 | 10 | Hyperplastic polyp | Treatment | 2.5 × 2.2 | Tubular adenoma | None |
6 | 25–35/ S1 | 4 | Well differentiated NET | Treatment | 2.7 × 2.2 cm (tumor 4 mm) | Well differentiated NET | None |
7 | 55–65/ S1 | 10 | Tubulovillous adenoma | Treatment | 2.3 (cancer 2 mm) | Polyp Moderately differentiated adenocarcinoma (Haggit’s 1) | None |
8 | 85–95/ S1 | 3 | Moderately differentiated adenocarcinoma (cT2 / early T3 N0 M0) | Treatment | 3.9 × 2.3 | Moderately differentiated adenocarcinoma (pT2) | None |
9 | 55–65/ S2 | 8 | Well differentiated NET | Treatment | 1.2 × 0.6 mm | Well differentiated NET | None |
10 | 35–45/ S1 | 4 | Moderately differentiated invasive adenocarcinoma, arising in a tubular adenoma with high-grade dysplasia | Treatment | 1.5 × 0.7 | Tubular adenoma with high-grade dysplasia | None |
11 | 65–75/ S2 | 3 | Villous adenoma with at least high-grade dysplasia and suspicions cancer | Treatment | 3 × 2 × 0.5 | Moderately differentiated adenocarcinoma cT1N0M0 | None |
12 | 35–45/ S1 | 5 | Well differentiated NET | Treatment | 2.3 × 1.7 × 0.7 (nodule 0.8 cm) | Well differentiated NET | None |
13 | 25–35/ S1 | 9 | Low grade dysplasia | Treatment | 7 × 5 × 4 cm | Villous adenoma | None |
14 | 45–55/ S1 | 5 | Tubulovillous adenoma with focal high-grade dysplasia | Treatment | 3 × 2.5 × 1.5 | Tubulovillous adenoma | None |
15 | 35–45/ S1 | 10 | Well differentiated adenocarcinoma on tubulovillous adenoma (incomplete colonoscopic removal) | Treatment | 4.5 × 3.6 × 2 | Residual well differentiated adenocarcinoma on tubulovillous adenoma (SM3) | None |
16 | 45–55/ S1 | 5 | None | Diagnostic and treatment | 2.7 × 1.8 × 0.8 cm and 2.8 × 2 × 0.4 cm | benign inflammatory cloacogenic polyp/ mucosal prolapse. | None |
17 | 55–65/ S1 | 10 | Tubulovillous adenoma with focal high-grade dysplasia | Treatment | 2.5 × 1.7 × 1.8 cm | Moderately differentiated invasive adenocarcinoma with mucinous component in a background of tubulovillous adenoma with focal high grade dysplasia. Kikuchi SM2 | None |