The occipital sinus, which is the smallest dural venous sinus, runs along the inner surface of the occipital bone. The occipital sinus is attached to the posterior margin of the falx cerebelli and receives tributaries from the margins of the foramen magnum.
What sinus drains the occipital lobe?
The occipital sinus is the smallest of all dural venous sinuses. It lies in the base of the falx cerebelli on the inner side of the occipital bone. The occipital sinus drains the blood from the marginal sinus, which is a venous vessel situated along the rim of the foramen magnum.
How many occipital sinuses are there?
The occipital sinus is the smallest of the dural venous sinuses (also known as the cranial sinuses) and only present in around 65% of cases. It is situated in the attached margin of the falx cerebelli, and is generally single, but occasionally there are two.
Is occipital sinus paired?
There are seven paired (transverse, cavernous, greater & lesser petrosal, sphenoparietal, sigmoid and basilar) and five unpaired (superior & inferior sagittal, straight, occipital and intercavernous) dural sinuses.
Can sinusitis cause occipital pain?
It accounts for only 2.7–3.0% of all paranasal sinus diseases. A patient may present with myriad symptoms, ranging from occipital or vertex headache, retro-orbital pain, otalgia, drowsiness to meningitis-like symptoms.
How is occipital neuralgia treated?
Medications and a set of three steroid injections, with or without botulinum toxin, can “calm down” the overactive nerves. Some patients respond well to non-invasive therapy and may not require surgery; however, some patients do not get relief and may eventually require surgical treatment.
Is the cavernous sinus part of the brain?
Cavernous sinuses drain the blood from the orbits through the ophthalmic veins and from the anterior part of the base of the brain by the sphenoparietal sinus and the middle cerebral veins. They empty into both the superior and inferior petrosal sinuses and ultimately into the internal jugular veins.
What are brain sinuses?
The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) are venous channels found between the endosteal and meningeal layers of dura mater in the brain.
Where does straight sinus drain?
The straight sinus, also known as tentorial sinus or the sinus rectus, is an area within the skull beneath the brain. It receives blood from the inferior sagittal sinus and the great cerebral vein, and drains into the confluence of sinuses. Dural veins (Straight sinus labeled as ‘SIN.
Where is the sphenoid sinus?
A type of paranasal sinus (a hollow space in the bones around the nose). There are two large sphenoid sinuses in the sphenoid bone, which is behind the nose between the eyes. The sphenoid sinuses are lined with cells that make mucus to keep the nose from drying out.
What is magnum foramen?
The foramen magnum is the largest foramen of the skull. It is located in the most inferior portion of the cranial fossa as a part of the occipital bone.
What passes through cavernous sinus?
The internal carotid artery with its surrounding sympathetic plexus passes through the cavernous sinus. The third, fourth, and sixth cranial nerves are attached to the lateral wall of the sinus. The ophthalmic and maxillary divisions of the fifth cranial nerve are embedded in the wall, as depicted in the image below.
What is sinusitis problem?
Sinusitis is an inflammation of the sinuses that can cause them to get blocked and filled with fluid. It is usually caused by cold or allergies. An infection could result from the blockage.
What two veins are responsible for draining the neck and superficial head?
jugular vein, any of several veins of the neck that drain blood from the brain, face, and neck, returning it to the heart via the superior vena cava. The main vessels are the external jugular vein and the interior jugular vein.
How do you relieve sinus pressure in the back of your head?
Management and Treatment
Apply a warm compress to painful areas of the face.Use a decongestant to reduce sinus swelling and allow mucus to drain.Try a saline nasal spray or drops to thin mucus.Use a vaporizer or inhale steam from a pan of boiled water. Warm, moist air may help relieve sinus congestion.
What does occipital neuralgia feel like?
Occipital neuralgia is a distinct type of headache characterized by piercing, throbbing, or electric-shock-like chronic pain in the upper neck, back of the head, and behind the ears, usually on one side of the head. Typically, the pain of occipital neuralgia begins in the neck and then spreads upwards.
Is sphenoid sinus disease serious?
Sphenoid sinus infections can cause severe complications that are potentially fatal and therefore must never be underestimated.
