Involvement of the lower cranial nerves as false localizing signs of intracranial tumour is very rare. A laterally placed posterior fossa meningioma gave rise to contralateral cerebellar ataxia and palsies of the fifth, ninth, and tenth cranial nerves.

Dandy-Walker Malformation (DWM) is a rare congenital anomaly of the posterior cranial fossa. Features DWM include hypoplasia cerebellar vermis, enlargement fossa, and cystic dilatation fourth ventricle. MRI modality to confirm diagnosis. Treatment usually symptomatic required when signs hydrocephalus develop. Rare cases asymptomatic diagnosed incidentally are reported in literature. We report c...

OBJECTIVES/HYPOTHESIS Examine a protective crumple zone effect of paranasal sinuses and nasal cavity on skull base fractures. STUDY DESIGN Randomized-control, cadaveric study. METHODS In the experimental group (n = 4), the nasal cavity and bilateral sinuses of cadavers were obliterated with bone cement, whereas the control group (n = 4) had native sinus architecture. Increasing frontal, gla...

The autonomic nervous system consists of a vast range of nerves and ganglions. Anatomical studies have demonstrated that the sympathetic innervations of the head and neck are affected by the neurons that ramify from the cranial cervical ganglion (CCG). The CCG is the end of the sympathetic cervical trunk, which runs with the vagal nerve during its cervical course. In this study sixteen adult (2...

The Anterior Clinoid Processe (ACP) and Middle Clinoid Process (MCP) are sometimes connected by an osseous bridge formed by ossification of Carotico-clinoid Ligament (CCL), converting the distal end of carotid sulcus into an ostium called the Carotico-clinoid Foramen (CCF). Through the CCF passes one of the segment of Internal Carotid Artery (ICA). The CCF is the result of ossification of eithe...

Intrasellar arachnoid cysts represent around 1% of all selar lesions. Generally, patients are asymptomatic and when they exhibit visual and/or hormonal disturbances, the indication for surgery is prompted. A 51-year-old woman with a known purely intrasellar cyst diagnosed 23 years prior to presentation, evolved gradual campimetric evaluation. Magnetic resonance imaging showed significant growth...

We present the first report of a patient with atypical hemifacial microsomia (HFM) and unilateral aplasia of the floor of the middle cranial fossa, glenoid fossa, and portions of her posterior fossa. The patient also developed a Chiari I malformation with cervical syrinx over a 3-year interval. This case report highlights the critical role of imaging in revealing serious, but clinically occult,...

Neurenteric cysts (NC) are rare, endodermal-derived intracranial lesions, commonly located anteriorly in the posterior cranial fossa. We describe a rare case of a giant posterior fossa NC (6.5 × 5.9 × 4.3cm) located dorsal to the brain stem in a Chinese woman with a 1 week history of cerebellar symptoms. To our knowledge, this is the largest documented cyst of this type and the third dorsally l...

arachnoid cysts are congenital lesions arising from the arachnoid membrane. the incidence of arachnoid cysts in the general population is around 0.1% and their most common location is the middle fossa. arachnoid cysts usually present during the childhood and are identified incidentally. when symptomatic, the most common presentations include headache and seizure. the popular treatment for this ...

Mutism and neurobehaviour symptoms are well known features, which may occur following surgical excision of mass lesion of various histopathologies in the posterior cranial fossa, during the postoperative period. Mutism may be rarely associated with ataxia of eyelid closure and paresis of external ocular muscles. However, internuclear ophthalmoparesis is not reported in association with mutism f...