title: Intracystic papillary carcinoma of the breast in a male patient diagnosed by core needle biopsy: a case report.
abstract: We report a case of intracystic papillary carcinoma (IPC) of the breast in a 71-year-old man in whom diagnosis was made by core needle biopsy. He came to our hospital complaining of a left subareolar mass. Imaging diagnosis was a cyst with an intracystic component. Since aspiration biopsy cytology was interpreted as a borderline lesion, the decision was made to proceed with core needle biopsy. Pathological examination of the specimen revealed the intracystic component to be non-invasive papillary carcinoma. So the patient underwent simple mastectomy without axillary node biopsy. From the final pathological result, no invasion was identified.
authors.affiliation: Surgical Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan. takinosh@ncc.go.jp
authors.forename: Takayuki
authors.initials: T
authors.lastname: Kinoshita
authors.forename: Takashi
authors.initials: T
authors.lastname: Fukutomi
authors.forename: Eriko
authors.initials: E
authors.lastname: Iwamoto
authors.forename: Miyuki
authors.initials: M
authors.lastname: Takasugi
authors.forename: Sadako
authors.initials: S
authors.lastname: Akashi-Tanaka
authors.forename: Tadashi
authors.initials: T
authors.lastname: Hasegawa
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D018567:Breast Neoplasms, Male / Q000473:pathology* / Q000601:surgery; D002291:Carcinoma, Papillary / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008408:Mastectomy