recurring scarring aphthae

per·i·ad·e·ni·tis mu·co·sa ne·cro·ti·ca re·cur·rens

(per'ē-ad-ĕ-nī'tis myū-kō'să ne-krot'i-kă rē-kŭr'enz) A severe form of aphthae characterized by unusually numerous, large, deep, and frequent ulcers; healing may take as long as 6 weeks and produce scarring.
Synonym(s): aphthae major, Mikulicz aphthae, recurrent scarring aphthae, recurring scarring aphthae, Sutton disease.