fever pitch vs inflammation

fever pitch and inflammation both are nouns.

Word	Noun	Adjective	Verb	Adverb
fever pitch	Yes	No	No	No
inflammation	Yes	No	No	No

As nouns, inflammation is a hypernym of fever pitch; that is, inflammation is a word with a broader meaning than fever pitch:

Other hypernyms of fever pitch include excitation, excitement, fervor, fervour.

fever pitch (noun)	inflammation (noun)
a state of extreme excitement	arousal to violent emotion
	the act of setting something on fire
	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat
	the state of being emotionally aroused and worked up