Phyllodes tumor is a rare tumor of the breast, accounting for only 1% of all breast tumors. The disease is usually slow-growing and can include benign, malignant, and borderline forms that all require treatment.

Ultrasound is a useful modality for the diagnosis and management of benign and malignant breast disease. Ultrasound is a safe, non-invasive technique that does not use radiation. This article discusses breast abnormalities that can be detected by ultrasound.