What is another name for phyllodes tumors?

Phyllodes tumors are also known as cystosarcoma phyllodes. This terminology reflects the tumor's characteristic histological features, which resemble a leaf-like pattern (from the Greek "phyllon" meaning leaf). Phyllodes tumors are typically classified as benign, borderline, or malignant, and they arise from the stromal tissue in the breast, leading to distinct clinical and pathological behaviors compared to other breast tumors. The term "cystosarcoma" indicates the tumor’s association with both cystic and sarcomatous features, emphasizing its fibroepithelial nature. This duality sets it apart from other breast lesions, contributing to its unique management strategies and surgical considerations.

The other terms provided do not accurately describe phyllodes tumors. Cystadenomas are a type of benign tumor associated typically with glandular tissues, while fibroadenomas refer specifically to a benign breast tumor that contains both stromal and epithelial components but does not exhibit the same characteristics as phyllodes tumors. Adenocarcinoma is a malignant tumor arising from glandular tissue, which is distinct from the fibroepithelial nature of phyllodes tumors. Understanding these distinctions is crucial for proper diagnosis and treatment planning for breast tumors.