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Table 1 TIRADS classification features of thyroid ultrasound

From: A novel TIRADS of US classification

Feature category US features
Composition Solid Cystic Mixed
Margin Ill-defined Microlobulated
Shape Irregular
Calcification Micro-calcification Macro-calcification No-calcification
Taller than wide <= 1 (wider than tall) > 1 (taller than wide)
Blood flow Central Peripheral Messy Focal thyroid inferno No