PASH = PseudoAngiomatous Stromal Hyperplasia
- Presents as a distinct mass, area of thickening of breast tissue, or as an incidental finding
- Biopsy is necessary to confirm diagnosis
- Excision with negative margin (ie. 1 mm) is treatment – recurrence rate is low (7%) and no further treatment necessary
- There are findings on mammogram and ultrasound by biopsy is needed for diagnosis.