thoracoepigastric vein vs vena thoracoepigastrica

thoracoepigastric vein and vena thoracoepigastrica both are nouns.

Word	Noun	Adjective	Verb	Adverb
thoracoepigastric vein	Yes	No	No	No
vena thoracoepigastrica	Yes	No	No	No

As nouns, thoracoepigastric vein and vena thoracoepigastrica are synonyms defined as:

thoracoepigastric vein and vena thoracoepigastrica: a vein arising from the region of the superficial epigastric vein and opening into the axillary vein or thoracic vein

thoracoepigastric vein (noun)	vena thoracoepigastrica (noun)
a vein arising from the region of the superficial epigastric vein and opening into the axillary vein or thoracic vein	a vein arising from the region of the superficial epigastric vein and opening into the axillary vein or thoracic vein