Protein expression profile and microRNA expression signature in estrogen receptor-positive and -negative breast cancers: report of two cases.

Background: Identification of the proteins that are associated with estrogen receptor (ER) status is a first step in selecting drugs against hormone-dependent breast cancer. Recently, the proteins associated with ER status were reported using liquid chromatography and tandem mass spectrometry, and microRNA (miRNA) profiling of breast cancer subtype was demonstrated using real-time-PCR.

Methods: We present herein two cases with differential protein expression and miRNA profiling in ER-positive and -negative breast cancer.

Parotid Gland Metastasis of Breast Cancer: Case Report and Review of the Literature.

BACKGROUND: Parotid gland metastasis in breast cancer is extremely rare, and only 14 cases have been reported between 1982 and 2010. CASE REPORT: A 67-year-old female patient was diagnosed with invasive lobular carcinoma of the left breast. Although clinical staging was T1N3M1 (stage IV), the tumor experienced a complete response to chemotherapy.