Angiography, fluorescein: A test to examine blood vessels in the retina, choroid, and iris of the eye. A special dye is injected into a vein in the arm and pictures are taken as the dye passes through the blood vessels in the eye.
The dye is injected into a vein in the arm. The pictures taken as the dye passes through the blood vessels in the eye can help detect a number of problems.
If the eye care professional suspects a patient has a disorder such as wet age-related macular degeneration (wet AMD), the patient may have fluorescein angiography. The resultant photos help evaluate leaking blood vessels and determine whether they can be treated.
- Angioid streaks
Angioid streaks: Tiny breaks in the elastin-filled tissue in the retina in the back of the eye. Angioid streaks are seen in patients with pseudoxanthoma elasticum, a rare disorder of degeneration of the elastic fibers with tiny areas of calcification in the skin, retinae, and blood vessels, and they are visible during an examination using […]
- Angiomatosis, bacillary
Angiomatosis, bacillary: A bacterial infection due to a cat scratch most often seen today in people with HIV. The disease characteristically presents with swollen lymph nodes (lymphadenitis), sore throat, fatigue, and fever, chills, sweats, vomiting, loss of appetite, and weight loss. There is usually a little bump (a papule) which may be pus-filled (a pustule) […]
- Angioneurotic edema, hereditary
Angioneurotic edema, hereditary: A genetic form of angioedema. (Angioedema is also referred to as Quinke’s disease.) Persons with it are born lacking an inhibitor protein (called C1 esterase inhibitor) that normally prevents activation of a cascade of proteins leading to the swelling of angioedema. Patients can develop recurrent attacks of swollen tissues, pain in the […]
- Angiomyxoma, aggressive
Angiomyxoma, aggressive: A slow-growing tumor of stromal cells which occurs primarily in the genital and pelvic regions. This tumor is much more common in women. It can range from relatively small tumors to football-size masses in the pelvis. The histologic appearance of the tumor under the microscope is rather distinctive. Treatment consists of surgical excision […]
Angiopathy: Disease of the arteries, veins, and capillaries. There are two types of angiopathy: microangiopathy and macroangiopathy. In microangiopathy, the walls of small blood vessels become so thick and weak that they bleed, leak protein, and slow the flow of blood. For example, diabetics may develop microangiopathy with thickening of capillaries in many areas, including […]