| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| CANC | CANC_TOPO(C209)_MORPHO(8240)_BEH(3) | Rectum, NOS, Carcinoid tumor, NOS | 96 | |
| CANC | CANC_TOPO(C209)_MORPHO(8249)_BEH(3) | Rectum, NOS, Atypical carcinoid tumor | 6 | |
| CANC | CANC_TOPO(C199)_MORPHO(8240)_BEH(3) | Rectosigmoid junction, Carcinoid tumor, NOS | 5 | |
| CANC | CANC_TOPO(C209)_MORPHO(8246)_BEH(3) | Rectum, NOS, Neuroendocrine carcinoma, NOS | 5 |