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Table 2 T staging on DWI [13]

From: Accuracy of diffusion-weighted magnetic resonance imaging in evaluation of muscle invasion and histologic grading of the urinary bladder carcinoma

T stageDescription
T1 or <A thin, flat, high SI area or high SI mass with a low SI submucosal stalk (stalk sign) or a thickened submucosa
T2A high SI tumor without a submucosal stalk and with a smooth margin
T3Lesion extension into the perivesical fat with an irregular margin
T4Lesions extension into adjacent organs