實驗大鼠的肺臟組織切片如下圖(左為H&E染色、右為鍍銀染色),最有可能的致病原為下列何者?

AMycoplasma pulmonis
BCorynebacterium kutscheri
CFilobacterium rodentium(舊稱cilia-associated respiratory bacillus)正確答案
Dpneumonia virus of mice
答案與詳解

圖左(H&E)可見氣道纖毛上皮完整但纖毛間/上皮旁有細長桿菌緊貼;圖右(鍍銀染色)出現大量深棕/黑色細長棒菌緊附於纖毛上皮表面,此為CAR bacillus(Filobacterium rodentium,舊稱cilia-associated respiratory bacillus)的診斷性特徵,鍍銀染色是其確診標準法
