title: Pleomorphic adenoma of the breast.
abstract: Pleomorphic adenoma is a very rare benign tumor of the breast. Only 70 cases have been reported in the world literature. Recently, we encountered a case of pleomorphic adenoma of the breast and thus present here the mammographic and ultrasonographic findings with the pathology of this rare breast tumor. The patient was a 76-year-old Japanese woman with a right breast mass. The mammography showed a 1.5-cm, lobulated high-density mass with partially ill-defined margins. Ultrasonography revealed an irregularly shaped mass with partially ill defined borders, hypoechoic and heterogeneous internal echoes, and posterior acoustic enhancement. These findings suggested an invasive carcinoma. Awareness of this type of tumor will help in correct diagnosis, in spite of the rarity of this disease.
authors.affiliation: Department of Health Sciences, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan. ymizu@mhs.mp.kanazawa-u.ac.jp
authors.forename: Yuji
authors.initials: Y
authors.lastname: Mizukami
authors.forename: Teruhiko
authors.initials: T
authors.lastname: Takayama
authors.forename: Akihiro
authors.initials: A
authors.lastname: Takemura
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Ichikawa
authors.forename: Masahisa
authors.initials: M
authors.lastname: Onoguchi
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Miyati
authors.forename: Takao
authors.initials: T
authors.lastname: Taniya