Final answer:
Paget's disease of the breast is a rare type of breast cancer and accounts for less than 5% of all breast cancer cases. Its early detection is critical for effective treatment.
Step-by-step explanation:
The student has asked about the proportion of breast cancers accounted for by Paget's disease of the breast. Paget's disease of the breast is a rare type of breast cancer, which forms a small percentage of all breast cancer cases. While the provided information primarily discusses diagnostic methods for Paget's disease affecting the bones and common types of cancers and their prevalence, it does not specifically mention the percentage related to Paget's disease of the breast. However, Paget's disease of the breast is known to account for less than 5% of all breast cancer cases. Early detection of breast cancer, including Paget's disease of the breast, is important as it can often be cured with surgery.