B. Medium or High Density Masses
1. Benign
a. Angiolipoma
b. Cyst
c. Diabetic Fibrous Mastopathy
d. Fibroadenoma
e. Fibrocystic Change
f. Hematoma
g. Leiomyoma
h. Lymph Node
i. Nipple Out of Profile
j. Papilloma
k. Sebaceous Cyst/Inclusion Cyst
l. Skin Lesions
m. Sternalis Muscle
n. Vascular Lesions
2. Malignant or Locally Recurrent
a. Adenoid Cystic Carcinoma
b. Angiosarcoma
c. Infiltrating Ductal Carcinoma
d. Invasive Papillary Carcinoma
e. Lobular Carcinoma
f. Lymph Nodes
g. Medullary Carcinoma
h. Metaplastic Carcinoma
i. Metastases
j. Mucinous Carcinoma
k. Phyllodes Tumor
3. Granular Cell Tumor
A. Benign Masses
1. Adenosis
2. Fat Necrosis
3. Fibroadenoma
4. Hematoma
5. Papillary Lesions
6. Radial Scar
7. Scar
8. Miscellaneous
B. Malignant
1. Infiltrating Ductal Carcinoma