Final answer:
The typical clinical breast examination findings for cystosarcoma phyllodes are that the tumor is well-circumscribed, mobile, and has a rubbery consistency.
Step-by-step explanation:
The question asks about the clinical breast examination (CBE) findings for cystosarcoma phyllodes, which is a rare type of tumor in the breast that may be benign or malignant. Based on the options provided, the typical CBE findings for a phyllodes tumor are b) Well-circumscribed, mobile, and rubbery. This reflects that the tumor can often be delineated from surrounding tissue (well-circumscribed), it's not fixed to the chest wall or skin (mobile), and has a firmer consistency than the surrounding breast tissue (rubbery). These findings can help differentiate it from other types of breast lesions. It is important to note that for any new or suspicious findings in a breast exam, further medical evaluation, including imaging and possibly a biopsy, is warranted to establish a diagnosis.