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Difference between revisions of "Colorectal cancer staging"
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Colorectal cancer staging (view source)
Revision as of 15:31, 12 January 2016
, 15:31, 12 January 2016→TNM staging system
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==TNM staging system== | ==TNM staging system== | ||
===Tumour stage=== | ===Tumour stage=== | ||
*Tis - in situ (intramucosal). | *Tis - in situ (intramucosal). | ||
| Line 15: | Line 12: | ||
*T3 - into fat beyond musclaris propria. | *T3 - into fat beyond musclaris propria. | ||
*T4 - into something else. | *T4 - into something else. | ||
Note: | |||
*High-grade dysplasia, "intramucosal colorectal carcinoma", and "[[colorectal adenocarcinoma in situ]]" are used interchangeably by many in the colon and rectum. | |||
**High-grade dysplasia is the preferred term - see ''"[[intramucosal colorectal carcinoma]]"''. | |||
**If one were to splitting hairs: ''adenocarcinoma in situ'' is ''invasion into the lamina propria'', high-grade dysplasia does not have lamina propria invasion. Ergo, the difference amounts to seeing a [[desmoplastic stroma]] (adenocarcinoma) or not seeing one (dysplasia). | |||
===Nodes stage=== | ===Nodes stage=== | ||