26.下列有關犬隻支持細胞瘤（Sertoli cell tumor）敘述何項正確？
(A)呈現團塊偽管狀構造
(B)細胞質明顯空泡形成且具脂色素
(C)細胞大呈多角形，並見少量多核巨噬細胞
(D)腫塊切面常呈橘紅色

Gross morphology of common canine testicular tumors. 

(A) Sertoli cell tumor. These neoplasms are firm, typically discretely nodular or multinodular, with a white or gray fibrous texture. They are flat and smooth when cut.

(B) Interstitial (Leydig) cell tumor. These tumors are usually small, well circumscribed, yellow‐brown, soft, and bulge on cut surface. They often contain hemorrhage and/or cysts.

(C)Seminoma. These are usually soft, glistening gray to white, bulge on cut surface, and often efface the entire testicle. Some have areas of necrosis and hemorrhage.  

Tumors in Domestic Animals 5th Edition, page 708.