internal cerebral vein vs vena cerebrum internus

internal cerebral vein and vena cerebrum internus both are nouns.

Word	Noun	Adjective	Verb	Adverb
internal cerebral vein	Yes	No	No	No
vena cerebrum internus	Yes	No	No	No

As nouns, internal cerebral vein and vena cerebrum internus are synonyms defined as:

internal cerebral vein and vena cerebrum internus: two paired veins passing caudally near the midline and uniting to form the great cerebral vein

internal cerebral vein (noun)	vena cerebrum internus (noun)
two paired veins passing caudally near the midline and uniting to form the great cerebral vein	two paired veins passing caudally near the midline and uniting to form the great cerebral vein