GAMUT I-4
POORLY DEFINED OR IRREGULARLY MARGINATED LESIONS OF THE BREAST


COMMON
*1. Carcinoma  (esp. scirrhous; invasive ductal  ; invasive lobular  ; medullary; mucinous; papillary)
*2. Fat necrosis (traumatic; postsurgical; postbiopsy scar; idiopathic)
*3. Fibrocystic change (esp. sclerosing adenosis)
4. [Superimposed densities or summation shadows creating a "pseudomass"]


UNCOMMON
*1. Abscess, acute or chronic
2. Complicated cyst (hemorrhagic, inspissated, or infected)
*3. Fibroadenoma (hyalinized)
*4. Fibromatosis (extra-abdominal desmoid)
5. Foreign body granuloma (eg, suture)
*6. Granular cell myoblastoma
7. Hematoma
8. Lymphoma G
9. Plasma cell mastitis
*10. Radial scar  (complex sclerosing lesion)
11. Sarcoma 
12. Tuberculosis ; fungus disease; nocardiosis


*May present as a spiculated lesion.

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




References