Table 3.

MRI differential diagnoses for multifocal or diffuse intracranial neoplastic lesions.

Extra-Axial, Meningeal Based Masses	Sellar/ Parasellar Masses	Intra-Axial Masses	Intraventricular Masses	Multiple Locations
Meningioma	Lymphoma	Brain metastases	Choroid plexus tumor with drop metastases	Lymphoma
Lymphoma	Histiocytic sarcoma	Lymphoma	Glioma with drop metastases	Histiocytic sarcoma
Histiocytic sarcoma	Meningioma	Histiocytic sarcoma	Lymphoma	Meningioma
Brain Metastases	Brain Metastases	Glioma
Distinct, synchronous tumors	Distinct, synchronous tumors	Distinct, synchronous tumors	Distinct, synchronous tumors	Distinct, synchronous tumors