Polyarteritis nodosa presenting as serous otitis media in a patient receiving hyposensitization therapy.

Polyarteritis nodosa was diagnosed in a patient one year after an episode of severe serous otitis media and 2 1/2 years after initiation of a 23 month course of hyposensitization therapy for nonseasonal rhinitis. Relationships among immunotherapy, otitis media and polyarteritis nodosa merit emphasis because their recognition may lead to early diagnosis.