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KMID : 1134120090120030219
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Journal of Breast Cancer
2009 Volume.12 No. 3 p.219 ~ p.222
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Malignant Adenomyoepithelioma of the Breast Presenting as a Large Mass that Grew Slowly without Metastasis
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Choi So-Young
Kim Joong-Suck
Kim Sei-Joong
Kim Yun-Jeong
Kim Lucia
Cho Young-Up
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Abstract
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An adenomyoepithelioma (AME) is an uncommon neoplasm characterized by proliferation of both epithelial and myoepithelial cells in the salivary gland, skin, lung and breast. AMEs can recur, progress to malignancy and metastasize. A 68- year-old woman presented a large mass occupying her whole right breast. The mass had grown slowly for about 20 years and the preoperative biopsy of the mass was chondroid syringoma. The mass was completely resected and the postoperative biopsy revealed malignant AME with a negative resection margin. The patient didn’t receive any adjuvant therapy and has been free of recurrence or metastasis up to now. We report herein a case of a malignant AME that was diagnosed in the largest breast mass reported to date. This mass grew slowly and without metastasis. Clinicians should consider this rare disease entity in the differential diagnosis of a breast mass and remember the importance of complete excision of this tumor.
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KEYWORD
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Adenomyoepithelioma, Breast, Carcinoma
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