Difference between revisions of "Colorectal tumours"
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m (more, refs) |
m (→Grading: definitions) |
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*Tis - in situ (intramucosal), | *Tis - in situ (intramucosal), | ||
*T1 - into submucosa (through mucularis mucosae), | *T1 - into submucosa (through mucularis mucosae), | ||
** | **This is different than elsewhere, e.g. in the ''small bowel'' tumour cells in the ''lamina propria'' is defined as T1. The rationale for the ''T1'' definition in CRC is that no lymphatics are present in the mucosa, ergo no risk of distant spread. | ||
*T2 - into muscularis propria, | *T2 - into muscularis propria, | ||
*T3 - into fat beyond musclaris propria, | *T3 - into fat beyond musclaris propria, | ||