A craniotomy may be needed to treat brain tumors, aneurysms, epilepsy, or vascular malformations when other treatments are not effective.

The test measures the number of eosinophils in the blood to assess immune system activity and detect various conditions.

No, fasting is not required for this test.

Elevated counts can be caused by allergic reactions, parasitic infections, autoimmune diseases, and certain cancers.

The test involves a simple blood draw, which may cause slight discomfort but is generally well-tolerated.

Results are typically available within a few hours to a day

A lumpectomy is a breast-conserving surgery that removes a tumor and a small margin of surrounding tissue, preserving most of the breast.