Cancer Terms

Colorectal Cancer pT4 TNM Finding

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Colorectal Cancer pT4 TNM Finding Definition

Colorectal cancer with direct invasion of adjacent organs or structures and/or perforation of the visceral peritoneum. Direct invasion in T4 includes invasion of other segments of the colorectum by way of the serosa. Invasion of the sigmoid colon by a carcinoma of the cecum, for example, should be classified as T4. Tumor that is adherent to other organs or structures macroscopically is classified as T4. However, if on microscopic examination, no tumor is present in the adhesion, the classification should be pT3. V and L substaging should be used to indicate the presence or absence of vascular or lymphatic invasion. (from AJCC 6th Ed.)

Colorectal Cancer pT4 TNM Finding Synonyms

Colorectal Cancer pT4 TNM Finding, pT4 Colon Cancer, pT4 Colorectal Cancer, pT4 Colorectal Carcinoma, pT4 Rectal Cancer

Terms in Colorectal Cancer pT4 TNM Finding category

Colorectal Cancer pT4a TNM Finding
Colorectal Cancer pT4b TNM Finding



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