泪腺多形性腺瘤是最常见的泪腺上皮性肿瘤，约占50%，是由上皮和间质成分构成的良性肿瘤，过去称之为良性混合瘤。成年好发，单眼发病。
结果298例肿瘤中，最常见的为泪腺多形性腺瘤，其它依次为腺样囊腺癌，腺癌，多形性腺癌及其它泪腺少见肿瘤。
Results Among 298 cases, pleomorphic adenomas was the most common, followed by adenoid cystic carcinoma, pleomorphic adenocarcinoma, adenocarcinoma and other type.
目的探讨泪腺良性多形性腺瘤术后易复发和恶性变的原因。
Objective To investigate the causes of recurrence and malignant change of pleomorphic adenoma (benign mixed tumour) of lacrimal gland.
结果在泪腺上皮性肿瘤中，以多形性腺瘤、样囊腺癌、形性腺癌和腺癌较为多见。
Results Among lacrimal gland tumors, the pleomorphic adenoma, adenoid cystadenocarcinoma, pleomorphic adenocarcinoma and adenocarcinoma were very common.
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