Retinal hemangiomas are vascular abnormalities of a congenital nature. Neither anomalies nor aneurysms are acquired as a result of embolism. These hemangiomas are commonly seen in children or young adults due to complications of macular damage, vitreous hemorrhage, or retinal detachment. Or found during a systematic examination of families with hereditary hemangiomas.
Leber’s millet granulomatosis and Coats’ central exudative retinitis are described separately. Currently, it is thought that these are two progressive forms of the same disease, called Leber-Coats disease with common features:
It is possible that photocoagulation of aneurysms is the source of the exudate. When photocoagulation is not effective, cryotherapy or ciliary photocoagulation can be used.
The disease was stable for a long time, but the subretinal exudates were pseudotumor, causing retinal detachment, vitreous hemorrhage and neovascular glaucoma.
This is a rare disease with a familial, dominant inheritance, usually appearing at the age of 20-30 years. Common in young people, both men and women.
– Seen in both eyes in 1/3 of cases.
– Can be combined with a brain hemangioma or other organs (liver, kidney…).
– It is essentially a hemangioblastoma due to proliferation of fetal endothelial cells.
– Decreased vision.
– Ophthalmoscopy; A pair of dilated, zigzag blood vessels emerge from the optic disc, which is difficult to identify as a vein or an artery, this pair of vessels goes out to the periphery and then pours into a dark red spherical aneurysm that protrudes in front of the retina. , it is surrounded by a pale white shell due to glial proliferation.
Small tumors can be photocoagulated, frozen. Sometimes electrocoagulation is directed at the lesions, photocoagulating the feeding vessels to reduce inflow of blood. If there are results, the hemangioma shrinks. But sometimes treatment increases secretions causing retinal detachment. Large tumors can place radioactive cobalt discs.
Prognosis: retinal hemangiomas rarely regress, often leading to retinal detachment, loss of eye function.
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