肺癌病理切片报告中这些符号是什么意思?

2025年03月15日 10:20
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细胞角蛋白7(CK7)分子量为54KDa,主要标记腺上皮和移行上皮,卵巢,肺和乳腺上皮CK7阳性,而结肠、前列腺和胃肠道上皮为CK7阴性,因此可用于肺癌(CK7+)与结肠癌(CK7-)的鉴别。
TTF-1是一种分子量为38-40KD的核蛋白,在胎儿肺组织和成人2型肺泡上皮中存在,而在1型肺泡上皮中始终不表达,TTF-1在成人组织中主要分布在内胚层分化的甲状腺滤泡细胞,间脑局部和呼吸道上皮中。主要用于肺小细胞癌的诊断、肺原发性腺癌与转移性腺癌的鉴别诊断,以及肺癌与胸膜恶性间皮瘤、副节瘤的鉴别诊断。常与CSDX2、CK20、CK7、Villin的联合应用。在肝细胞和肝细胞肿瘤中为浆表现,可以用于鉴别原发性和转移性肝肿瘤。
CEA是一种在胎儿肠道产生的癌胚抗原,在成人结肠的正常粘膜上皮和其他组织中也有极低的表达,在胃肠道腺癌(包括胰腺癌),肺腺癌和甲状腺髓样癌中高表达,只要用于标记上皮性肿瘤,尤其是腺上皮来源的腺癌,仅识别不典型增生和癌变组织的CEA。
CgA是人类肾上腺髓质中含量最高的一种可溶性酸性蛋白,广泛存在于神经元及其神经内分泌细胞和肿瘤细胞中,主要用于神经内分泌肿瘤如:垂体肿瘤,胰岛细胞瘤,噬络细胞瘤,甲状腺髓样癌、小细胞肺癌、类癌的诊断。
Syn是一种糖蛋白,存在于神经元突触前囊泡膜上、肾上腺髓质细胞和神经内分泌细胞的胞浆内,主要用于噬珞细胞瘤、节细胞神经瘤、副节瘤以及AUPD系统肿瘤的诊断和鉴别诊断。

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