27.狗肛門周區發現柔軟之腫塊,其外觀特徵及組織病變如下圖所示,則其診斷應為: 

(A)鱗狀上皮細胞癌(squamous cell carcinoma)
(B)皮脂腺瘤(sebaceous gland adenoma)
(C)圍肛腺瘤(perianal gland adenoma)
(D)毛囊上皮細胞瘤(trichoepithelioma)
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統計: A(39), B(87), C(926), D(28), E(0) #857047
統計: A(39), B(87), C(926), D(28), E(0) #857047