title: Malignant cystosarcoma phyllodes in a pre-pubertal female.
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology / Q000601:surgery*; D002648:Child; D005260:Female; D006801:Humans; D008408:Mastectomy; D003557:Phyllodes Tumor / Q000473:pathology / Q000601:surgery*