Intracystic papillary carcinoma of the breast is a rarely seen tumor. It is often classified as a variant of in situ ductal carcinoma. Intracystic papillary carcinoma is slow growing and usually surrounded and limited by fibrosis capsule. Presently described is case of a 51-year-old postmenopausal patient. She felt a tumor in her left breast, and after examination, it was diagnosed as intracystic papillary carcinoma. Following adjuvant chemotherapy breast excision, and axillar dissection, patient was given curative external radiotherapy and hormonal treatment. As result of 40-month follow-up, the patient was evaluated as having local recurrence and no distant metastases. Follow-up and treatment protocols should be observed on case-by-case basis.