title: Granulomatous mastitis diagnosed by core-needle biopsy and successfully treated with corticosteroid therapy: a case report.
abstract: A 46-year-old woman presented to our hospital with a rapidly growing lump in her right breast. Fine-needle aspiration (FNA) cytology and core needle biopsy of the mass revealed many epithelioid cells admixed with multinucleated Langhans-type giant cells, neutrophils, lymphocytes, and stromal cells, leading to a diagnosis of granulomatous mastitis. Mammography and ultrasonography provided little information for differentiating between granulomatous mastitis and carcinoma. This patient was successfully treated with low dose and short period of corticosteroid therapy.
authors.affiliation: Surgical Center, Asahikawa Medical College Hospital, Asahikawa, Hokkaido 078-8510, Japan. hsatoshi@asahikawa-med.ac.jp
authors.forename: Satoshi
authors.initials: S
authors.lastname: Hirata
authors.forename: Takashige
authors.initials: T
authors.lastname: Saito
authors.forename: Kaori
authors.initials: K
authors.lastname: Kiyanagi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kitada
authors.forename: Kosuke
authors.initials: K
authors.lastname: Yamazaki
authors.forename: Tadahiro
authors.initials: T
authors.lastname: Sasajima
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Ohsaki
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Miyokawa
mesh_terms: D000893:Anti-Inflammatory Agents / Q000627:therapeutic use*; D001707:Biopsy, Needle / Q000379:methods; D005260:Female; D006099:Granuloma / Q000175:diagnosis* / Q000188:drug therapy*; D006801:Humans; D008413:Mastitis / Q000175:diagnosis* / Q000188:drug therapy*; D008875:Middle Aged; D011239:Prednisolone / Q000627:therapeutic use*; D016896:Treatment Outcome; D016217:Ultrasonography, Mammary
chemical_list: D000893:Anti-Inflammatory Agents; D011239:Prednisolone