[Malignant otitis externa (2 cases)].

Malignant external otitis is a progressive necrotizing otitis. It's a rare severe and evolutive clinical entities, old diabetics are the most victim. Pseudomonas aeruginosa is the bacteria responsible in the most cases. Prognostic vital can be affected, treatment must be energic, rapid and well adapted. The authors report two old diabetic women presenting a malignant external otitis and discuss etiopathogenic, physiopathologic, diagnosis and treatment of this illness.