What rhymes with peritonitis

3 Syllables
arthritisbronchitiscolitiscystitisgastritisglossitisiritismastitismephitisnephritisneuritisosteitisphlebitisrachitistyphlitis
4 Syllables
cephalitisdermatitisduodenitisenteritisgingivitishepatitislaryngitismeningitismyocarditisparotitispharyngitisstomatitistonsillitistympanitis
5 Syllables
appendicitisconjunctivitisencephalitisendocarditisgastroenteritispericarditisperiostitisperitonitis
6 Syllables
poliomyelitis