下列對於單一肺結節（solitary pulmonary nodule, SPN ）的敘述，何者錯誤？
A肺部內小於 2公分的無症狀腫塊（an asymptomatic mass within the lung parenchyma that is less than 2cm ）正確答案
B小於 50% 是惡性（less than 50% are malignant ）
C單一肺結節若具有良性鈣化特徵，通常不需手術治療（patient with benign pattern of calcification doesn't need resection of SPN ）
D有些單一肺結節無法用楔狀切除（a wedge resection for SPN may not be always possible ）
答案與詳解
