19.下列疾病中，何者會有亮細胞（clear cell）存在？①腺泡細胞癌（acinic cell carcinoma） ②骨內黏液表皮樣瘤（intraosseous mucoepidermoid carcinoma） ③鈣化上皮齒源瘤 （calcifying epithelial odontogenic tumor） ④轉移腎臟癌（metastatic renal cell carcinoma）
(A)①②③④
(B)僅①③④
(C)僅①②
(D)僅②③④

太難==

CEOT：

Several microscopic variations may be encountered. Some tumors consist of large sheets of epithelial cells with minimal production of amyloid-like material and calcifications. Others show large diffuse masses of amyloid-like material that contain only small nests or islands of epithelium. A clear cell variant has been described, in which clear cells constitute a significant portion of the epithelial component, and this tumor also has been reported to have a cystic growth pattern. A microcystic pattern has also been described in some Pindborg tumors.

(neville P.722)