<unk>  is considered rare, but the prevalence is unknown. There are only about 101 cases described in the medical literature, with a male-to-female ratio of 1:1.25. It has been reported in patients from ages 4 to 92, with an average onset at age 42.
Red ear syndrome
Musical ear syndrome
Nasal vestibulitis
Vestibular adenitis
Surfer's ear
Tympanosclerosis
Rectovestibular fistula
Oculoauricular syndrome