Dec 28th, 2022 - Overview Hereditary hemorrhagic telangiectasia (tuh-lan-jee-uk-TAY-zhuh) is an inherited disorder that causes abnormal connections, called arteriovenous malformations (AVMs), to develop between arteries and veins. The most common locations affected are the nose, lungs, brain and liver. These AVMs may enlarge over time and can bleed or rupture, sometimes causing catastrophic complications. Spont...

Dec 28th, 2022 - Diagnosis Your doctor may diagnose HHT based on a physical examination, results of imaging tests and a family history. But some symptoms may not yet be apparent in children or young adults. Your doctor also may suggest you undergo genetic testing for HHT, which may confirm a suspected diagnosis. Imaging tests In HHT, abnormal connections called arteriovenous malformations (AVMs) develop between...

Dec 14th, 2022 - Overview Cerebral cavernous malformation Open pop-up dialog box Close Cerebral cavernous malformation Cerebral cavernous malformation A cerebral cavernous malformation is an abnormally formed blood vessel, shaped like a small mulberry, which can form in the brain or spinal cord and may result in a wide range of neurological symptoms. Cerebral cavernous malformations (CCMs) are groups of tightly...

Dec 14th, 2022 - Diagnosis Neurology consultation A Mayo Clinic neurologist converses with a woman about her diagnosis. Often, people with cerebral cavernous malformations (CCMs) don't show any signs or symptoms. Your diagnosis may result from brain imaging for other neurological conditions. In some cases, specific symptoms may prompt your health care provider to pursue more extensive testing. Tests Depending o...

Sep 27th, 2022 - Overview What is cerebrovascular disease? Cerebrovascular disease is an umbrella term for conditions that impact the blood vessels in your brain. “Cerebro” refers to your brain and “vascular” refers to your blood vessels (arteries and veins). Cerebrovascular diseases may cause a reduction of blood flow to your brain (ischemia) or bleeding (hemorrhage) in a part of your brain. Both conditions ar...

Aug 31st, 2022 - Overview A subarachnoid hemorrhage is bleeding in the space between the brain and the surrounding membrane (subarachnoid space). The primary symptom is a sudden, severe headache. Some people describe it as the worst headache they have ever felt. Along with having a headache, some people may experience: Nausea Vomiting Stiff neck Problems with vision Brief loss of consciousness Bleeding usually ...

Aug 31st, 2022 - Overview A subarachnoid hemorrhage is bleeding in the space between the brain and the surrounding membrane (subarachnoid space). The primary symptom is a sudden, severe headache. Some people describe it as the worst headache they have ever felt. Along with having a headache, some people may experience: Nausea Vomiting Stiff neck Problems with vision Brief loss of consciousness Bleeding usually ...

Aug 9th, 2022 - Overview Intracranial venous malformations are veins in the brain that are unusually large. These larger veins aren't likely to cause symptoms or affect how the veins work. Some people may have an intracranial venous malformation that is never diagnosed and never causes symptoms. Sometimes, they're found by accident when you have a brain imaging test for another condition. Intracranial venous m...

Aug 9th, 2022 - Intracranial venous malformation care at Mayo Clinic Experience Mayo Clinic doctors trained in brain and nervous system conditions (neurologists), brain and nervous system surgery (neurosurgeons),and other specialties have vast experience diagnosing and treating people with intracranial venous malformations and other brain and other central nervous system vascular malformations. Team approach M...

Aug 9th, 2022 - Diagnosis Because you may not have symptoms with intracranial venous malformations, your health care provider might find that you have the condition during testing for other neurological problems. You might have these imaging tests to diagnose other neurological conditions: CT scan. A CT scan creates a series of X-rays to create detailed, cross-sectional images of your blood vessels and your br...

Aug 3rd, 2022 - Spinal AVM care at Mayo Clinic Collaboration at Mayo Clinic Spinal AVM care at Mayo Clinic Mayo Clinic's AVM care team has the experience and knowledge to make accurate diagnoses and recommend the best treatment plan for you. At Mayo Clinic, neurologists, neurosurgeons, neuroradiologists and other specialists work together as a multidisciplinary team to provide expert, individualized care to ev...

Aug 3rd, 2022 - Overview Spinal arteriovenous malformation (AVM) Open pop-up dialog box Close Spinal arteriovenous malformation (AVM) Spinal arteriovenous malformation (AVM) A spinal arteriovenous malformation (AVM) is an abnormal tangle of blood vessels on, in or near the spinal cord. Spinal arteriovenous malformation (AVM) is a tangle of blood vessels on, in or near the spinal cord. Without treatment, this r...

Aug 3rd, 2022 - Diagnosis Spinal AVM consultation at Mayo Clinic Mayo Clinic doctors use advanced imaging studies and the latest tools and techniques to diagnose spinal AVM. Spinal arteriovenous malformations can be difficult to diagnose because the symptoms are similar to those of other spinal conditions, such as spinal dural arteriovenous fistula, spinal stenosis, multiple sclerosis or a spinal cord tumor. Y...

Jun 18th, 2022 - Overview Kyphosis Open pop-up dialog box Close Kyphosis Kyphosis An increased front-to-back curve of the spine is called kyphosis. Kyphosis is an exaggerated, forward rounding of the upper back. In older people, kyphosis is often due to weakness in the spinal bones that causes them to compress or crack. Other types of kyphosis can appear in infants or teens due to malformation of the spine or w...

Jun 14th, 2022 - Overview Brain AVM Open pop-up dialog box Close Brain AVM Brain AVM In a brain AVM, blood passes directly from the arteries to the veins via tangled vessels. This disrupts the typical process of how blood circulates through the brain. Blood vessels in brain AVM Open pop-up dialog box Close Blood vessels in brain AVM Blood vessels in brain AVM In a brain arteriovenous malformation, blood passes ...

Jun 14th, 2022 - Overview Brain AVM Open pop-up dialog box Close Brain AVM Brain AVM In a brain AVM, blood passes directly from the arteries to the veins via tangled vessels. This disrupts the typical process of how blood circulates through the brain. Blood vessels in brain AVM Open pop-up dialog box Close Blood vessels in brain AVM Blood vessels in brain AVM In a brain arteriovenous malformation, blood passes ...

Jun 14th, 2022 - Diagnosis To diagnose a brain AVM, your health care provider will review your symptoms and conduct a physical exam. One or more tests may be used to diagnose brain AVM. Radiologists trained in brain and nervous system imaging (neuroradiologists) usually conduct imaging tests. Neurology consultation at Mayo Clinic Brain AVM Angiogram Open pop-up dialog box Close Brain AVM Angiogram Brain AVM Ang...

Jun 14th, 2022 - Brain AVM care at Mayo Clinic Your Mayo Clinic care team At Mayo Clinic, neurologists, neurosurgeons, neuroradiologists and other specialists work together as a multidisciplinary team to provide expert, individualized care to every person with a brain AVM. This means that you're not getting just one opinion — you benefit from the knowledge and experience of each specialist. Close collaboration ...

Jun 14th, 2022 - Overview Brain AVM Open pop-up dialog box Close Brain AVM Brain AVM In a brain AVM, blood passes directly from the arteries to the veins via tangled vessels. This disrupts the typical process of how blood circulates through the brain. Blood vessels in brain AVM Open pop-up dialog box Close Blood vessels in brain AVM Blood vessels in brain AVM In a brain arteriovenous malformation, blood passes ...

May 28th, 2022 - Overview What is Klippel-Trenaunay Syndrome? Klippel-Trenaunay syndrome (KTS) is a rare congenital disorder. Congenital means it’s present at birth. KTS causes a red “port-wine stain” birthmark. It also changes the way your soft tissues, bones and blood vessels develop. Many people with KTS also have abnormalities in their lymphatic system, which helps maintain fluid balance in the body. Klippe...