vena gastrica sinistra vs left gastric vein

vena gastrica sinistra and left gastric vein both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena gastrica sinistra	Yes	No	No	No
left gastric vein	Yes	No	No	No

As nouns, vena gastrica sinistra and left gastric vein are synonyms defined as:

vena gastrica sinistra and left gastric vein: arises from a union of veins from the gastric cardia; runs in the lesser omentum; empties into the portal vein

vena gastrica sinistra (noun)	left gastric vein (noun)
arises from a union of veins from the gastric cardia; runs in the lesser omentum; empties into the portal vein	arises from a union of veins from the gastric cardia; runs in the lesser omentum; empties into the portal vein