On mammogram all of the following are the features of a malignant tumor except:

On mammogram all of the following are the features of a malignant tumor except:

a) Spiculation
b) Micro-calcification
c) Macro-calcification
d) Irregular mass

c. Macro-Calcification

Micro-calcifications may be associated with cancer.
Macro calcification may be caused by aging or by a benign condition such as fibro-adenoma, a common noncancerous tumor of the breast.
Distorted areas suggest tumors that may have invaded neighbouring tissues