title: A case of chondromatous tumor of the breast.
abstract: This report describes an exceedingly rare case of a benign cartilage-containing breast tumor that developed in the right breast of a 52-year-old woman. She found the mass on self examination. Physical examination revealed a 1.5 x 1.4 cm, firm, smooth and mobile lump in the lower medial quadrant close to the nipple of the right breast. Mammography revealed a slightly indistinct margined, oval-shaped, and high density nodule without microcalcifications. On ultrasonography, the lesion was a hypoechoic, oval-shaped mass with an echogenic spot. The border was slightly rough. Fine needle aspiration cytology revealed some giant cells and necrotic tissue. Excisional biopsy was then performed. Histopathologically, the lesion consisted of islands of mature hyaline cartilage with intervening strands of fibrous stroma. Mammary lobules and ducts were lacking within the mass. Fat and muscular components were not present. Therefore chondromatous tumor of the breast was diagnosed.
authors.affiliation: First Department of Surgery, Gunma University School of Medicine, 3-39-22 Showamachi, Maebashi, Gunma 371-8511, Japan. uchidn@sannet.ne.jp
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Uchida
authors.forename: Masayuki
authors.initials: M
authors.lastname: Shiojima
authors.forename: Hajime
authors.initials: H
authors.lastname: Sasamoto
authors.forename: Keisuke
authors.initials: K
authors.lastname: Ieta
authors.forename: Takanori
authors.initials: T
authors.lastname: Inose
authors.forename: Hideaki
authors.initials: H
authors.lastname: Yokoo
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kuwano
mesh_terms: D001707:Biopsy, Needle; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D002812:Chondroma / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008327:Mammography; D008875:Middle Aged; D014463:Ultrasonography