title: Extramammary cystosarcoma phyllodes with bilateral breast involvement.
abstract: A 30-year-old woman presented with breast masses. One of the breast masses was clinically suggestive of cystosarcoma phyllodes. Excision of the breast masses revealed bilateral cystosarcoma phyllodes. A few weeks later another lump appeared in the left groin, and this on excision was found to be cystosarcoma phyllodes at an aberrant site. We consider it a unique clinical presentation of cystosarcoma phyllodes.
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002828:Choristoma / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007264:Inguinal Canal; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*; D003557:Phyllodes Tumor / Q000175:diagnosis* / Q000473:pathology