What is a rap lesion?
RAP shows typically late-phase leakage of the ICG molecule into intraretinal spaces or cystoid edema. The ICG molecule has an affinity for fibrin, which is present in the cystic spaces. ICG can also reveal the retinochoroidal anastomosis clearly.
What is retinal Angiomatous proliferation?
Retinal angiomatous proliferation (RAP) is defined as a variant of exudative age related macular degeneration (AMD) in which the retinal-choroidal neovascularization is characterized by intraretinal capillary proliferation or, if the origin of the process is in the choroid, then it is an early retinal-choroidal …
What is Polypoidal choroidal vasculopathy?
Polypoidal choroidal vasculopathy (PCV) is a disease of the choroidal vasculature. It is present in both men and woman of many ethnicities, characterized by serosanguineous detachments of the pigmented epithelium and exudative changes that can commonly lead to subretinal fibrosis.
What is retinal Angioma?
Retinal angiomas are benign vascular hamartomatous lesions with important systemic and visual implications. Early diagnosis and treatment of retinal angiomas with an appropriate systemic workup for associated systemic diseases can prevent visual loss and morbidity and mortality.
What is a retinal angiogram?
Fluorescein angiography (FA) is when your ophthalmologist uses a special camera to take pictures of your retina. These pictures help your ophthalmologist get a better look at the blood vessels and other structures in the back of the eye.
What does Polypoidal mean?
polypoid. / (ˈpɒlɪˌpɔɪd) / adjective. of, relating to, or resembling a polyp. (of a coelenterate) having the body in the form of a polyp.
How do you treat PCV?
The most common treatments for PCV are intravitreal (in-the-eye) injections of an anti-VEGF medication and photodynamic therapy (PDT). Vascular endothelial growth factor (VEGF) is a molecule generated by the body that causes the abnormal vessels in PCV to leak fluid and to bleed into and under the retina.
What is retinal astrocytoma?
Retinal astrocytomas (RAs) are benign, glial tumors of the retinal nerve fiber layer that arise from retinal astrocytes. They may be associated with tuberous sclerosis, neurofibromatosis, or can also be found incidentally as an isolated presentation.
Is Angioma the same as hemangioma?
Angioma or haemangioma (American spelling ‘hemangioma’) describes a benign vascular skin lesion. An angioma is due to proliferating endothelial cells; these are the cells that line the inside of a blood vessel.
Is retinal imaging safe?
These devices scan the unique patterns of a person’s retina to ensure that the correct individual can access restricted areas or information, and most experts agree that retinal scanners pose no health risk or other dangers to users.
What types of diseases of the eye are best diagnosed using an angiogram?
FA is often recommended to find and diagnose eye disease including:
- macular edema (swelling in the retina that distorts vision)
- diabetic retinopathy (damaged or abnormal blood vessels in the eye caused by diabetes)
- macular degeneration.
- blockage of veins inside the eye, called BRVO or CRVO.
What is a polypoid tumor?
Polypoid tumors of the bowel arise as fiat plaques of tissue which spread circumferentially (Fig. 1, A). The more rapidly infiltrating tumors soon invade the deeper layers of the bowel wall and encircle the bowel until the typical “napkin ring” carcinoma is produced.
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