cystosarcoma phyllodesとは意味:葉状嚢肉腫{ようじょう のうにくしゅ} cystosarcoma phyllodes meaning:[Medicine] A variant of mammary fibroadenoma,usually of large size,with an unusually cellular,sarcoma-like stroma. n : a slow-growing tumor of the breast that resembles a fibroadenoma