Angioid streaks

Angioid streaks
Tiny breaks in the elastin-filled tissue in the back of the eye (retinae). These abnormalities are visible to the doctor during an examination using a viewing instrument called an ophthalmoscope. Angioid streaks are seen in patients with pseudoxanthoma elasticum (abbreviated PXE), a rare disorder of degeneration of the elastic fibers with tiny areas of calcification in the skin, back of the eyes (retinae), and blood vessels. Angioid streaks can be associated with blindness.

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reddish to dark-brown irregular streaks radiating outwards from the optic disc underneath the retinal vessels. They represent irregular linear cracks in Bruch's membrane and can be the site for the development of new vessels from the choroid that leak. They are seen in such systemic conditions as pseudoxanthoma elasticum, Paget's disease, and sickle-cell anaemia.

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red to black irregular bands observed in the ocular fundus running outward from the region of the optic disk, which are seen in certain conditions, including pseudoxanthoma elasticum, osteitis deformans, and sickle-cell anemia. The lesions are thought to represent ruptures in the lamina basalis of the choroid.

Angioid streaks (arrows) in Ehlers-Danlos syndrome.


Medical dictionary. 2011.

Look at other dictionaries:

  • Angioid streaks — Angioid streaks, also called Knapp streaks or Knapp striae are small breaks in Bruch s membrane, an elastic tissue containing membrane of the retina that can become calcified and crack.They were first described by Robert Walter Doyne in 1889 in a …   Wikipedia

  • Angioid streaks — An|gio|id streaks [ạ̈nds̶c̶h̶oid ßtri̱kß; aus gleichbed. engl. angioid streaks] Mehrz.: “angioide Netzhautstreifen“, auf degenerative Veränderungen der Netzhaut zurückzuführende braune, radiär von der Pupille ausgehende Streifen in der Netzhaut… …   Das Wörterbuch medizinischer Fachausdrücke

  • angioid streaks — reddish to dark brown irregular streaks radiating outwards from the optic disc underneath the retinal vessels. They represent irregular linear cracks in Bruch s membrane and can be the site for the development of new vessels from the choroid that …   The new mediacal dictionary

  • angioid — an|gio|i̱d [↑angio... u. ↑...id]: blutgefäßähnlich. an|gio|i̱de Nẹtzhautstreifen vgl. Angioid streaks …   Das Wörterbuch medizinischer Fachausdrücke

  • Grцnblad-Strandberg syndrome — angioid streaks in the retina together with pseudoxanthoma elasticum of the skin …   Medical dictionary

  • Pseudoxanthoma elasticum — (Abbreviated PXE). A genetic disorder of elastic fiber degeneration with tiny areas of calcification in the skin, back of the eyes (retinae), and blood vessels. PXE is inherited from the parents, either as an autosomal recessive or as an… …   Medical dictionary

  • Pseudoxanthoma elasticum — Infobox Disease Name = Pseudoxanthoma elasticum Caption = DiseasesDB = 10876 DiseasesDB mult = DiseasesDB2|10881 DiseasesDB2|10885 DiseasesDB2|10894 ICD10 = ICD10|Q|82|8|q|80 (ILDS Q82.81) ICD9 = ICD9|757.39 ICDO = OMIM = 264800 MedlinePlus =… …   Wikipedia

  • streak — A line, stria, or stripe, especially one that is indistinct or evanescent. [A.S. strica] angioid streaks calcification of lamina basalis choroideae visible in the peripapillary fundus oculi; associated with pseudoexanthoma elasticum, si …   Medical dictionary

  • pseudoxanthoma elasticum — ▪ pathology also called  Grönblad strandberg Syndrome,         inherited disease in which the premature breakdown of exposed skin occurs. It is characterized by eruptions of yellow plaques and thickening and grooving of the skin on the face, neck …   Universalium

  • Optic disc drusen — Classification and external resources ICD 10 H47.3 ICD 9 377.21 …   Wikipedia

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