title: Malignant phyllodes tumour as an intracystic growth with osteosarcomatous differentiation.
abstract: Phyllodes tumour is an uncommon fibro epithelial tumour of breast that often presents clinically as a rapidly enlarging lump. On mammography it appears as a soft tissue density well circumscribed mass. Ultrasound shows it to be a solid hypoechoic mass with small cystic spaces. A case of malignant phyllodes tumour with an atypical appearance of intracystic tumour on sonography is reported with pertinent imaging features and histopathological diagnostic criteria. The tumour had undergone osteosarcomatous differentiation.
authors.affiliation: Department of Radiology, The Aga Khan University Hospital, Karachi. shaista.afzal@aku.edu
authors.forename: Shaista Afzal
authors.initials: SA
authors.lastname: Saeed
authors.forename: Imrana
authors.initials: I
authors.lastname: Masroor
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D002454:Cell Differentiation; D005260:Female; D006801:Humans; D008327:Mammography; D003557:Phyllodes Tumor / Q000000981:diagnostic imaging / Q000473:pathology*