GAMUT I-9
BREAST ULTRASOUND - HYPERECHOIC OR MIXED ECHOGENICITY LESIONS


COMMON
1. Carcinoma  (calcified)
2. Fat necrosis (traumatic; postsurgical; postbiopsy scar; idiopathic)
3. Fibroadenoma  (calcified)
4. [Metallic or other artifact; biopsy marker; foreign body]
5. "Milk of calcium" crystals in cyst fluid  (dependent crystal layer is hyperechoic)
6. Scarring with or without scar calcification
7. Silicone extravasation (leakage  or rupture)


UNCOMMON
1. Lipoma 
2. Cyst, complex (inspissated, hemorrhagic)


[    ] This condition does not actually cause the gamuted imaging finding, but can produce imaging changes that simulate it.




References