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Difference between revisions of "Tumour deposit"
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==Definition== | ==Definition== | ||
Definition - TNM/AJCC 8th edition for colorectal cancer: | |||
"Tumor deposits are defined as discrete tumor nodules within the lymph drainage area of the primary carcinoma without identifiable lymph node tissue or identifiable vascular or neural structure. The shape, contour, and size of the deposit are not considered in these designations." | |||
Definition - TNM/AJCC 7th edition for colorectal cancer:<ref name=pmid21555695/> | Definition - TNM/AJCC 7th edition for colorectal cancer:<ref name=pmid21555695/> | ||
*Microscopic or macroscopic nodule in the lymphatic drainage bed of the tumour. | *Microscopic or macroscopic nodule in the lymphatic drainage bed of the tumour. | ||
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Notes: | Notes: | ||
*The definition of ''tumour deposit'' has changed significantly between the TMN/AJCC fifth, sixth | *The definition of ''tumour deposit'' has changed significantly between the TMN/AJCC fifth, sixth, seventh editions.<ref name=pmid21555695/> | ||
*Lesions that are ''not'' in the drainage bed of the tumour are [[Colorectal_cancer_staging#Metastasis_stage|metastatic disease]], pM1b. | *Lesions that are ''not'' in the drainage bed of the tumour are [[Colorectal_cancer_staging#Metastasis_stage|metastatic disease]], pM1b. | ||
===Ueno criteria=== | ===Ueno criteria=== | ||
Ueno ''et al.'' propose that a tumour deposit is either:<ref name=pmid24112678/> | Ueno ''et al.'' propose that a tumour deposit is either:<ref name=pmid24112678/> | ||