DIPG is a diffuse intrinsic pontine glioma.
DMG is a diffuse midline glioma.
Glioma is a type of tumor that occurs in the brain and spinal cord.
Gliomas are classified by cell type, grade and location.
DMG is a newer pathology term used for gliomas that invade normal tissue in the “midline” of the brain. The midline includes multiple structures (the thalamus, the brainstem, and the spinal cord). Most biopsied DIPG tumors are diagnosised as DMG. Additionally, you can have a DMG outside of the brainstem that is not a DIPG.