MEDICINE
ONCOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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T1
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knock
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Come on
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Detailed explanation-1: -Visceral pleural invasion (VPI) is defined as the tumor that extends to the elastic layer of visceral pleura but not beyond the visceral pleural surface (3, 4). If the tumor (≤3 cm) is confirmed with VPI, the TNM upstages to T2 (3). Many scholars found VPI could be an independent risk factor of poor prognosis (4-6).
Detailed explanation-2: -It is divided into T1a, T1b, and T1c according to the diameter of the cancer. T1a means the cancer is 1cm or less at its widest part. T1b means the cancer is between 1cm and 2cm across. T1c means the cancer is between 2 and 3 cm across.
Detailed explanation-3: -The tumor, node, metastasis (TNM) staging system for lung cancer is an internationally accepted system used to characterize the extent of disease. The TNM system combines features of the tumor into stage groups that correlate with prognosis and are linked to treatment recommendations.
Detailed explanation-4: -These lymph nodes are on the same side as the main lung tumor (N2). The cancer has not spread to distant parts of the body (M0). The tumor has one or more of the following features (T2): It is larger than 3 cm but not larger than 5 cm across.