eMedicine - Mastoiditis : Article by Alyssa K Hamman, MD 

Mastoiditis - Before the use of antibiotics, acute mastoiditis was the most common complication of acute otitis media (AOM). Antibiotic treatment of AOM has decreased the incidence of acute mastoiditis.Mastoiditis has been classified into 2 types: classic and latent. Classic mastoiditis is a term used to refer to acute disease following AOM. Latent, or masked mastoiditis, refers to a more chronic disease, which can be subclinical, often secondary to partial treatment of AOM with antibiotics. Anatomy/developmentThe mastoid at birth consists ... mastoiditis, acute otitis media, aom, classic mastoiditis, latent mastoiditis, cholesteatoma,