涎腺肿瘤性肌上皮细胞核仁组织区银染色研究

THE AGNORS STUDY IN NEOPLASTIC MYOEPITHELIAL CELLS OF SALIVARY GLAND

采用银染色法对正常腮腺中肌上皮细胞、良恶性肌上皮瘤以及良恶性多形性腺瘤中肿瘤性肌上皮细胞的核仁组织区进行了研究。结果表明:正常腮腺中肌上皮细胞的银染核仁组织区计数值最低;良性肌上皮瘤细胞者的计数值低于恶性肌上皮瘤细胞;良性多形性腺瘤中肿瘤性肌上皮细胞的银染核仁组织区计数值高于良性肌上皮瘤而与恶性多形性腺瘤者近似,提示在良性多形性腺瘤中肿瘤性肌上皮细胞的这一特征与该瘤的“好种植、易复发”的生物学特性密切相关。

The silver staining was applied to demonstrate NORs in the myoepithelial cells of normal parotidgland, benign and malignant myoepitheliomas as well as neoplastic myoepithelial cells of benign andmalignant pleomorphic adenomas. The AgNORs count was the lowest in myoepithelial cells of normalparotid gland. The AgNORs count in benign myoepithelioma cells was lower than that of malignantones. The AgNORs count in neoplastic myoepithlial cells of benign pleomophic adenomas was higherthan that of benign myoepithelioma cells. The difference of AgNORs count in the myoepithelial cellsof benign and malignant pleomorphic adenomas was not significant. The result suggested that the featureof AgNORs in neoplastic myoepithelial cells of benign pleomorphic adenoma was closely associatedwith the biological characteristics of the tumor.