There is a large defect involving the cribriform plate on its right side, with downward herniation of the overlying frontal gyri indicating meningoencephalocele (traumatic, iatrogenic). There is a defect involving the upper part of the nasal septum as well. Signs of volume loss of the mentioned herniated frontal gyri is seen indicating gliosis. No secondary hydrocephalus.
Mild mucosal thickening of the maxillary antra and sphenoid sinus is noted. There is hypertrophy of the right inferior nasal turbinate.