Benign tumors are noncancerous growths in the body. They can occur anywhere in the body, grow slowly, and have clear borders. Unlike cancerous tumors, they don’t spread to other parts of the body. If ...

Benign tumors are noncancerous and usually harmless unless they press on important tissues. Malignant tumors are cancerous, can spread to other parts of the body, and usually need treatment.

Fat necrosis can feel like cancer and look like it on a mammogram, but it is usually harmless. Radial scars can mimic breast cancer on mammograms and may require a biopsy to rule out cancer. Mastitis ...