[Neurosarcoidosis. Report of one case in Mexico].

INTRODUCTION: The sarcoidosis is a granulomatous, multisystemic disease, of unknown etiology that mainly affects the lungs, skin and lymphatic ganglia. The definitive diagnosis is made by the presence of granulomas non-caseous in diverse organs. Sarcoidosis is rare in Mexico and reports of its incidence do not exist. In Spain the incidence is low (1.2 to 1.5 cases by 100,000 inhabitants). In the United States incidence is 5.9 to 6.3 cases by 100,000 inhabitants (males and females respectively). Neurosarcoidosis is present in 5 to 26% of all the patients with sarcoidosis. The neurological manifestations are diverse, depending on the location site.

CLINICAL CASE: We present the case of a male 33 years old, with recurrent facial paralysis, optic neuritis and affection of the third cranial nerve; the tomography of skull reveled an grow of left cavernous sinus and reinforcing bilateral temporal giral, and the nuclear magnetic resonance showed leptomeningeal reinforcing in the temporal lobe.

CONCLUSION: Although the neurosarcoidosis is rare in Mexico, it should be considered in patients with suggestive clinical manifestations and compatible imaging findings. It should be done an intense search of systemic affection with biopsy and verification of non-caseous granulomas.