title: Adenoma of the nipple, focusing on the contrast-enhanced magnetic resonance imaging findings: report of a case.
abstract: A woman in her 50s was referred to our hospital for an investigation of a right breast tumor. The tumor was palpated below the nipple, but there was no erosion or nipple discharge. Mammography showed a well-defined high-density tumor, measuring 2 cm in diameter, without calcification, and ultrasonography showed a low-echoic mass with a fluid component with posterior echo enhancement and a lateral shadow. Contrast-enhanced magnetic resonance imaging (CE-MRI) demonstrated a 1.3 × 0.8 cm solid component and a gradually increasing time-intensity curve. We performed lumpectomy and the pathological findings were adenoma of the nipple. The pattern of the time-intensity curve might be attributed to moderate fibrosis of the tumor. Contrast-enhanced MRI is therefore considered to be very useful in the diagnosis of breast disease because it can show the nature and extent of the breast lesion; however, we should be aware that various patterns have been observed on CE-MRI for adenoma of the nipple.
authors.affiliation: Department of Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
authors.forename: Takaaki
authors.initials: T
authors.lastname: Tsushimi
authors.forename: Tadahiko
authors.initials: T
authors.lastname: Enoki
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Takemoto
authors.forename: Eijiroh
authors.initials: E
authors.lastname: Harada
authors.forename: Masataroh
authors.initials: M
authors.lastname: Hayashi
authors.forename: Tomoko
authors.initials: T
authors.lastname: Furuya
authors.forename: Kimikazu
authors.initials: K
authors.lastname: Hamano
mesh_terms: D000236:Adenoma / Q000473:pathology*; D001943:Breast Neoplasms / Q000473:pathology*; D003287:Contrast Media; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009558:Nipples
chemical_list: D003287:Contrast Media