Keywords: surgery otorhinolaryngologic, cerebrospinal rhinorrhea

Abstract: Eighteen patients with cerebrospinal fluid (CSF) Rhinorrhea from cribiforme plate region. Ethmoid and Sphenoid sinuses were treated. The etiology most comnom was Traumatic. The diagnosis of a CSF fistula was establishied by the patient's history, physical examitation (microscope, endoscope), and Computed Tomography with contrast. The most frequent clinical findings were Rhinorrhea, Headaches, and Meningits. The treatment in all cases was by Transnasal Microsurgery.