Abstract: The nasal septum abscess is an uncommon pathology and has been objett of small attention in the medical literature. It is a purulent collection between the cartilaginous nasal septum or bone and the respective perichondrium or the periosteum. The main causes are the nasal traumatic lesions, the post-surgical hemorrage of septalplasty or rhyno-septalplasty, and also abscess resulting, from spontaneous hematoms of the septum. The treatment of the nasal septum abscess or, of its predisponent factor, the hematom, must be the most precocious because its delay results in the classical nasal deformity "nasal saddle ", besides other complications like cerebral abscess, meningitis orseptum perforation. The authors present one case of nasal septum abscess that arrived late to the otorhinolaryngologist with destruction of the quadrangular cartilage together with a subperiostal abscess in the hard palate that evolved to a "nasal saddle".
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