perichondritis of auricle https://www.malacards.org/card/perichondritis_of_auricle MONDO:0002246 MEDGEN:509945 perichondritis and chondritis of pinna An otitis externa involving infection of the tissue surrounding the cartilage of the earlobe (pinna), ear canal, or both. It may be caused by injury, burns, insect bites, ear piercing, or a boil on the ear. The common bacterial causative agent is Pseudomonas aeruginosa. Symptoms include redness, pain, fever, swelling of the earlobe and pus accumulation between the cartilage and the layer of connective tissue around it. ICD9:380.00 DOID:222 perichondritis of pinna, unspecified ICD9:380.0 UMLS:C0155389 SCTID:34129005 otitis externa