RESUMEN

BACKGROUND: Although attributing the origin of schwannomas from the olfactory nerve is nearly impossible, if they do not have Schwann cells, intracranial supratentorial schwannomas are mainly located in the anterior skull base. CASE DESCRIPTION: We present the case of a 46-year-old female who presented with right tinnitus, dizziness, and bifrontal headache, progressive, starting 2 years before. Imaging studies revealed an incidentally neoplastic, extraaxial, homogeneously appearing tumor on the right anterior skull base. The patient underwent surgical treatment with total resection of the tumor by a bicoronal approach. The histopathologic study reported schwannoma. CONCLUSION: We describe this case in detail and discuss the likely origin of this tumor, with a concomitant literature review.

Asunto(s)

Neurilemoma/diagnóstico , Neurilemoma/cirugía , Neoplasias de la Base del Cráneo/diagnóstico , Neoplasias de la Base del Cráneo/cirugía , Diagnóstico Diferencial , Femenino , Humanos , Persona de Mediana Edad , Neurilemoma/patología , Neoplasias de la Base del Cráneo/patología

RESUMEN

The presence of giant occipital encephalocele represents a surgical challenge. However, preoperative magnetic resonance imaging with venography can help in delineating relation of venous sinus, content of the sac and help classify occipital encephalocele into infra-torcular and torcular depending on the relation with position of torcula. However, the presence of old hemorrhage into encephalocele sac is extremely rare and in the detailed PubMed search, the authors could find one such case, reported by Nath et al. The author reports a case of giant occipital encephalocele; during surgery, evidence of old bleed was noted. Pertinent literature and management are reviewed briefly.