"acute perichondritis of pinna"^^ . "A perichondritis of auricle with a sudden onset and a short course."^^ . "UMLS_CUI:C0155390"^^ . . "SNOMEDCT_US_2021_09_01:45855004"^^ . "DOID:221"^^ . . . "disease_ontology"^^ . "ICD9CM:380.01"^^ .