Collins R J, Yu H C
Department of Pathology, University of Hong Kong.
Cancer. 1989 Aug 15;64(4):870-5. doi: 10.1002/1097-0142(19890815)64:4<870::aid-cncr2820640418>3.0.co;2-3.
Primary tumors arising from the glandular structures of the external auditory canal (EAC) are rare, with the majority arising from the ceruminous glands. The histochemical, immunohistochemical, and electron microscopic features of a pleomorphic adenoma of the EAC are presented; this is the seventh case reported. These studies confirm the key role of the myoepithelial cell in this tumor and include a correlation with pleomorphic adenomas in other sites.
起源于外耳道腺性结构的原发性肿瘤很罕见，大多数起源于耵聍腺。本文展示了一例外耳道多形性腺瘤的组织化学、免疫组织化学及电子显微镜特征；这是报告的第七例。这些研究证实了肌上皮细胞在该肿瘤中的关键作用，并将其与其他部位的多形性腺瘤进行了对比。
