HER2-Positive Metaplastic Spindle Cell Carcinoma Associated with Synchronous Bilateral Apocrine Carcinoma of the Breast

• Main Authors: Katsumi Kito (Author), Toshiharu Maeda (Author), Keiko Ninomiya (Author), Atsuro Sugita (Author), Teiri Sagawa (Author), Kinya Matsuoka (Author), Kousei Kinoshita (Author), Naoki Hyodo (Author), Nagisa Morita (Author), Keizo Furuya (Author)
• Format: Book
• Published: Hindawi Limited, 2014-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Apocrine carcinoma, which is strictly defined as over 90% of tumor cells showing apocrine differentiation, is a rare variant of breast cancer. Here we report an uncommon case in which apocrine carcinomas developed concurrently in both breasts; in addition, a sarcomatoid spindle cell lesion was coinc...