Boundaries: The posterior cranial fossa is bounded anteriorly by the superior border of the petrous part of temporal bone. Even a small increase in the volumes within PCF, either in the form of tumor or hematoma can result in a significant increase in the intracompartmental pressure, leading to a life-threatening brain stem compression. The posterior cranial fossa houses the brainstem and cerebellum.. A midline sagittal T1- or T2-weighted sequence is ideal for showing the size of the posterior fossa, the shape and size of the vermis, and the size and morphology of the fourth ventricle and brainstem ( Fig 1a ). The frontal bone is marked in the midline by a body ridge, known as the frontal crest.It projects upwards, and acts as a site of attachment for the falx cerebri (a sheet of dura mater that divides the two cerebral hemispheres). Anteriorly it extends to the apex of the petrous temporal. It’s demarcated from the middle cranial fossa by the: Posterior free border of the lesser wing of sphenoid on every side and The posterior cranial fossa consists mostly of parts of the occipital and temporal bones, and to a smaller extent, the sphenoid and parietal bones also. Posterior cranial fossa is the posterior-most of the three fossae in the base of the skull. Different neurosurgeons modified and refined the surgical technique [2–7], so that the Dandy’s approach with an ipsilateral suboccipital flap [5, 6] evolved to what…

Conventional magnetic resonance (MR) imaging allows detailed evaluation of the anatomy of the posterior fossa and its contents . Contents. Contents. The posterior cranial fossa is the most posterior aspect of the skull base housing the brainstem and cerebellum. The vermis is divided into three parts by the The cranial cavity floor is divided into three distinct depressions. (“Occipital” refers to the occipital lobe which is a part of the cerebrum and is supratentorial.) 9.1 Lateral approaches to posterior cranial fossa and its contents In July 1897, Fedor Krause performed a unilateral suboccipital craniotomy in a patient with a tumor involving the CPA [1]. The posterior cranial fossa (PCF) is a compact and rigid space with poor compliance. The term “fossa” refers to a “scooped out” space, like the palm of your cupped hand. Introduction. Adult. The brainstem is responsible for controlling vital body functions, such as breathing.

The posterior fossa is a small space in the skull, found near the brainstem and cerebellum. These areas of the brain control the autonomic nervous system, coordination and movement. Cranial fossae (superior view) Foramina/fissures of the anterior cranial fossa. The anterior cranial fossa is the most shallow and the highest of the three cranial fossae. The anterior cranial fossa lodges the frontal lobes of the cerebral hemispheres. Fig. Contents. Within this fossa are two critical brain areas: the brain stem and the cerebellum.

Posterior cranial fossa: Content: brainstem, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal nerves, internal jugular vein Openings: foramen magnum, internal acoustic meatus, jugular foramen, anterior condylar (hypoglossal) canal: In this article, all important landmarks and structures within the scull will be described. The posterior cranial fossa is located behind the superior border of the petrous temporal bone and the dorsum sellae of the sphenoid and is the deepest of all cranial fossae.. The anterior cranial fossa is a depression in the floor of the cranial base which houses the projecting frontal lobes of the brain. There are several bony landmarks present in the anterior cranial fossa. The occipital bone is the main contributor to the fossa and the temporal bone forms the antero-lateral boundaries (Figure 4). This book provides the anatomy of the posterior fossa, together with the main associated surgical techniques, which are detailed in numerous photographs and step-by-step color illustrations. The posterior cranial fossa is part of the cranial cavity, located between the foramen magnum and tentorium cerebelli.It contains the brainstem and cerebellum..