- Why are vegetarians more likely to suffer from depression than meat eaters?
- Small wireless device implanted between skin and skull helps kill cancer cells
- Will the mRNA vaccine that can cure cancer come out near soon?
- Allogeneic T-cell therapy set for landmark first approval
- Boston University denies that the new COVID strain they made has 80% fatality rate
- A new generation of virus-free CAR-T cell therapy
Symptoms and signs of cavernous hemangioma
Symptoms and signs of cavernous hemangioma. What are the characteristics of intracranial cavernous hemangioma, it may be more serious than expected, the doctors suggest you pay attention to it.
Cavernous hemangioma is actually a vascular malformation. During the operation, it can be seen that there are malformed veins in the cavernous hemangioma. The walls of these veins are immature and easy to bleed.
These venous malformations are congenital. So, why are venous malformations called tumors?
After bleeding from these malformed veins, the blood clots are mixed with the malformed veins after fibrosis to form a globular tumor. Therefore, no matter what is seen in the film or during the operation, they are all tumor-like masses with a certain elastic texture and spongy blood vessels. This is how the name of the tumor comes from. Although it is called a tumor, it is essentially a venous malformation mass.
Therefore, cavernous hemangioma is not a real tumor. Cavernous hemangioma is not a real tumor, but it will grow up. But the nature of this growth is completely different from that of glioma.
The latter is due to tumor cell division leading to an increase in tumor volume, while cavernous hemangioma does not contain tumor cells. Its growth is due to repeated bleeding from venous malformations.
Blood clots are not completely absorbed in the bleeding, which forms new fibrosis, which is repeatedly deposited like mud and sand, resulting in larger and larger lumps surrounding the malformed venous mass. Therefore, cavernous hemangioma can “grow” as big as a real tumor.
Symptoms and signs of cavernous hemangioma:
1. No symptoms
Asymptomatic patients account for up to four levels. Mild headache may be the only main complaint, and the disease is often found by imaging examinations or physical examinations. Whether headache is related to focal bleeding still needs further research, but four of them have the following symptoms within 6 months to 2 years.
It is more common in cavernous hemangioma in the upper brain and manifests as various forms of epilepsy. Cavernous hemangioma is more prone to epilepsy than other lesions that occur at the same site. The reason may be the mechanical effect of cavernous hemangioma on adjacent brain tissues (ischemia, compression) and secondary nutritional disorders such as blood leakage. The brain surrounding the lesion Tissues often become epileptic foci due to hemosiderin deposition, gliosis, or calcification.
From surgical specimens or imaging examinations, it is often found that there are different stages of bleeding in the lesion, and symptomatic overt bleeding accounts for 8% to 37%. According to calculations, the annual bleeding rate of patients is 0.25% to 3.1%; the annual bleeding rate of lesions is 0.7% to 2%.
Cavernous hemangioma of the deep cerebral hemisphere is more prone to bleeding. Unlike AVM hemorrhage, the hemorrhage of cavernous hemangioma generally occurs in the brain tissue around the lesion, and rarely enters the subarachnoid space or ventricle.
The prognosis of cavernous hemangioma bleeding is better than that of AVM, but the possibility of bleeding again after the first bleeding is increased. Repeated bleeding can cause enlargement of the lesion and aggravate local neurological deficits.
4. Loss of local nerve function
Acute and progressive local neurological deficits are often secondary to lesion hemorrhage, and symptoms depend on the location and size of the lesion. It can be static, progressive, or mixed. Excessive hemorrhage causes severe acute neurological symptoms to be aggravated rarely.
Therefore, to treat this disease, once it is discovered, it must be treated specifically. Waiting blindly or hesitating about treatment will only worsen the condition and increase the difficulty of treatment. This is obviously a response method that doctors do not recommend.
(source:internet, reference only)