What is clivus anatomy?
The clivus (of Blumenbach) is the sloping midline surface of the skull base anterior to the foramen magnum and posterior to the dorsum sellae 1. Specifically, it is formed by the sphenoid body and the basiocciput, which join at the spheno-occipital synchondrosis.
What is the function of clivus?
The clivus is an important landmark for checking for anatomical atlanto-occipital alignment; the clivus, when viewed on a lateral C-spine X-ray, forms a line which, if extended, is known as Wackenheim’s clivus line. Wackenheim’s clivus line should pass through the dens of the axis or be tangential to it.
What is clivus lesion?
Clival tumors are growths on the clivus, a portion of bone at the base of the skull. When clival tumors grow, they may invade and damage important nearby structures: cranial nerves, the internal carotid arteries and the brainstem, for example.
Is the clivus part of the temporal bone?
The clivus (Latin for “slope”) is a part of the cranium, a shallow depression behind the dorsum sellae that slopes obliquely backward. Laterally, the clivus meets the petrous portion of the temporal bone at the petro-occipital fissure. Together, these three bones form the skull base and middle fossa floor.
What 2 bones make up the clivus?
The clivus (Latin for “slope”) forms the central skull base. It is formed by the synostosis of the basisphenoid (sphenoid bone) and basiocciput (occipital bone).
How clivus is formed?
The clivus (Latin for “slope”) forms the central skull base. It is formed by the synostosis of the basisphenoid (sphenoid bone) and basiocciput (occipital bone). During early development, the axial sclerotomes of the first somites are integrated into the skull base to form the basioccipital part of the clivus.
What is Sellar Pneumatization?
In sellar type of sphenoid sinus, pneumatization extends beyond the tuberculum sella into the body of the sphenoid and even as far as the clivus and anterior and medial walls can be removed easily permitting total exposure of the base of sella during transsphenoidal approach (Carter et al.).
Can you survive chordoma?
Chordomas are malignant and potentially life threatening tumors. Currently the median survival in the United States is about 7 years. The overall survival rates are 68% at 5 years and 40% at 10 years. Complete surgical resection offers the best chance for long-term survival.
What are the symptoms of chordoma?
These symptoms can include tingling, numbness, weakness, lack of bladder or bowel control, sexual dysfunction, vision problems, endocrine problems and swallowing difficulties. If the chordoma has grown very large, you may be able to feel a lump.
Where is the petrous part of the temporal bone?
The petrous part is pyramidal shaped, and lies at the base of temporal bone. It contains the inner ear.
What does skull base mean?
The term “skull base” refers to the bottom of the skull or the plate of bone upon which the brain sits. The skull base also has an opening known as the foramen magnum, which allows the spinal cord and various blood vessels and nerves to pass through to the brain. The following bones make up the skull base: ethmoid.
Which is part of the abdomen does CT show?
Atlas of CT Anatomy of the Abdomen. Axial reconstruction. 1, Right lung. 2, Right hepatic vein. 3, Liver. 4, Left hepatic vein. 5, Stomach. 6, Left colic flexure (splenic flexure of the colon). 7, Spleen. 8, Left lung. 9, Aorta. Image 1. Atlas of CT Anatomy of the Abdomen.
Where is the Clivus located in the human body?
Inferiorly, the clivus is flanked by the rounded prominences of the jugular tubercles, which represents the fusion of the basiocciput with the lateral jugular parts of the occipital bone. At the level of the jugular tubercles, the clivus is occupied by the medulla 1.
How is the anatomy of the abdomen determined?
This photo gallery presents the anatomy of the abdomen by means of CT (axial, coronal, and sagittal reconstructions). Image 1. Atlas of CT Anatomy of the Abdomen.
Where is the slope of the Clivus located?
Clivus (anatomy) The clivus ( Latin for “slope”) is a bony part of the cranium at the skull base, a shallow depression behind the dorsum sellæ that slopes obliquely backward. It forms a gradual sloping process at the anterior most portion of the basilar occipital bone at its junction with the sphenoid bone.