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Am J Surg Pathol. 2005 Oct;29(10):1294-9.

Adenomyoepithelioma: clinical, histologic, and immunohistologic evaluation of a series of related lesions.

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Departments of Biostatistics and Pathology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.


Adenomyoepithelioma, strictly defined, is a proliferation of both epithelial and myoepithelial elements. The broad range of lesions that may fall under this umbrella, however, may be quite diverse. The diagnostic confusion surrounding this entity and its prognostic implications have led to a diagnosis by default as malignant and to overtreatment of some patients. We evaluated available material from a series of 35 women whose slides were seen in consultation and who were diagnosed with adenomyoepithelioma or a closely related lesion. This comprehensive review of the varied histology of adenomyoepithelioma and similar lesions and their immunohistochemical properties will assist general pathologists in evaluating these sometimes difficult lesions. Follow-up and treatment information demonstrates their benignity. Architecture and histologic features should be combined with immunohistochemistry when determining categorization.

[Indexed for MEDLINE]

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