4 doctors weighed in:
What is the difference between a primary brain tumor and a metastatic (secondary) brain tumor?
4 doctors weighed in

Dr. Henry Friedman
Pediatrics
1 doctor agrees
In brief: See below
Primary brain tumors arise in the brain.
Metastatic brain tumors originate in another organ--such as breast cancer or melanoma, and spread to the brain.

In brief: See below
Primary brain tumors arise in the brain.
Metastatic brain tumors originate in another organ--such as breast cancer or melanoma, and spread to the brain.
Dr. Henry Friedman
Dr. Henry Friedman
Thank
Dr. Reza Shirazi
Radiation Oncology
1 doctor agrees
In brief: It's site of origin
Most common cancers we find in brain comes from other than brain origin, hence metastatic.
For example breast cancer, or melanoma, or renal cell cancer metastasis to brain. Primary brain tumor: it's origin is brain. It comes in different grades. Typically low, intermediate, high grades. Depending on histology (how they look under microscope), we separate them into different families.

In brief: It's site of origin
Most common cancers we find in brain comes from other than brain origin, hence metastatic.
For example breast cancer, or melanoma, or renal cell cancer metastasis to brain. Primary brain tumor: it's origin is brain. It comes in different grades. Typically low, intermediate, high grades. Depending on histology (how they look under microscope), we separate them into different families.
Dr. Reza Shirazi
Dr. Reza Shirazi
Thank
Get help from a real doctor now
Dr. Marsha Davis
Board Certified, Internal Medicine
24 years in practice
67M people helped
Continue
107,000 doctors available
Read more answers from doctors