Background:

Most of the lesions encountered during breast imaging exams are benign. Many of these have a typical and definite appearance on mammograms and ultrasound and require no further evaluation.

Nonetheless there is a group of benign lesions that cannot be differentiated from carcinomas because of their suspicious radiological features.  These lesions include:

Diabetic mastopathy

Carbon granulomas

Pseudoangiomatous Stromal Hyperplasia

Granular Cell Tumor

Sclerosing Adenosis

Radial Scar

Fat Necrosis

We discuss the radiological features and clinical presentation of the entities above mentioned.