This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'Serocystic disease of Brodie is also known as: \nSelect and explain. \nA. Cystosarcoma phyllodes, B. Fibroadenoma, C. Galactocele, D. Traumatic fat necrosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Cystosarcoma phyllodes): Ref: 834-LB (836-B & L 25th)Phvlioid tumours: benign tumour, previously sometimes known as serocystic disease of Brodie or cystosarcoma phylloides* Usually occurs over the age of 40* May recur locally but, despite the name of cystosarcoma phyllodes they one rarely cystic and only very rarely develop features of a sarcomatous tumoursTreatment* Benign = Enucleation in very young women or wide local excision* Massive tumours recurrent and those of malignant type - Mastectomy', 'role': 'assistant'}]