PMC4541634_01
(A) Clinical photograph immediately after diagnostic endoscopy; note the stretching of the nostril due to the endoscope. (B) T2-weighted MRI, coronal section, showing an intense soft tissue density in the right nasal cavity, which is communicating with intracranial contents; the white arrow points to a possible flow void. (C) T2-weighted MRI, sagittal section, showing an intense soft tissue density occupying the whole right nasal cavity; the white arrow points to a defect in the cribriform plate. (D) Endoscopic view of the meningoencephalocele sac; note the irregular surface due to an earlier attempted removal. (E) Endoscopic view of the septomucosal flap that was used to plug the defect after excision of the meningoencephalocele. (F) Repeat endoscopy at 5 months postoperative period, showing a completely healed right nasal cavity. MRI, magnetic resonance imaging.
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F1
Magnetic resonance imaging revealed a meningoencephalocele protruding from a defect in the right cribriform plate (Fig. 1 B, C). Nasal endoscopy revealed a pale pinkish mass with an irregular surface that completely occupied the right nasal cavity and displaced the septum to the opposite side. (Fig. 1 D). The defect was sealed by a rotated posterior-based nasal septomucosal flap (single-layered repair) (Fig. 1 E).
Magnetic resonance cisternography picture during follow-up, showing the absence of encephalocele or active CSF leak.
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F2
A magnetic resonance cisternography picture taken during the follow-up showed the absence of any encephalocele or active CSF leak. (Fig. 2).