fissure of Rolando vs Rolando's fissure

fissure of Rolando and Rolando's fissure both are nouns.

Word	Noun	Adjective	Verb	Adverb
fissure of Rolando	Yes	No	No	No
Rolando's fissure	Yes	No	No	No

As nouns, fissure of Rolando and Rolando's fissure are synonyms defined as:

fissure of Rolando and Rolando's fissure: a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes

Other synonyms of fissure of Rolando include central sulcus, sulcus centralis.

fissure of Rolando (noun)	Rolando's fissure (noun)
a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes	a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes