To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Kayser–Fleischer ring

From Wikipedia, the free encyclopedia

Kayser–Fleischer ring
A Kayser–Fleischer ring in a 32-year-old patient who had longstanding speech difficulties and tremor.
SpecialtyOphthalmology Edit this on Wikidata

Kayser–Fleischer rings (KF rings) are dark rings that appear to encircle the cornea of the eye. They are due to copper deposition in the Descemet's membrane as a result of particular liver diseases.[1] They are named after German ophthalmologists Bernhard Kayser and Bruno Fleischer who first described them in 1902 and 1903.[2][3][4] Initially thought to be due to the accumulation of silver, they were first demonstrated to contain copper in 1934.[5]

YouTube Encyclopedic

  • 1/5
    Views:
    2 156
    101 718
    466
    4 154
    1 229
  • K F ring
  • Wilson's disease - causes, symptoms, diagnosis, treatment & pathology
  • Glass Piece Inside The Eye..!!
  • Wing Beating Tremor = Wilson's Disease
  • Wilson disease

Transcription

Presentation

Copper deposition on corneal Descemet's membrane

The rings, which consist of copper deposits where the cornea meets the sclera, in Descemet's membrane, first appear as a crescent at the top of the cornea. Eventually, a second crescent forms below, at the "six o'clock position", and ultimately completely encircles the cornea.[1][6]

Associations

Copper deposition in peripheral Descemet membrane (Kayser–Fleischer ring) and anterior capsule of crystalline lens ( Sunflower cataract).

Kayser–Fleischer rings are a sign of Wilson's disease, which involves abnormal copper handling by the liver resulting in copper accumulation in the body and is characterised by abnormalities of the basal ganglia of the brain, liver cirrhosis, splenomegaly, involuntary movements, muscle rigidity, psychiatric disturbances, dystonia and dysphagia. The combination of neurological symptoms, a low blood ceruloplasmin level and KF rings is diagnostic of Wilson's disease.[1]

Other causes of KF rings are cholestasis (obstruction of the bile ducts), primary biliary cirrhosis and "cryptogenic" cirrhosis (cirrhosis in which no cause can be identified).[1]

Diagnosis

Diffuse illumination of cornea

As Kayser–Fleischer rings do not cause any symptoms, it is common for them to be identified during investigations for other medical conditions. In certain situations, they are actively sought; in that case, the early stages may be detected by slit lamp examination before they become visible to the naked eye.[1]

See also

References

  1. ^ a b c d e McDonnell G, Esmonde T (1999). "A homesick student". Postgrad Med J. 75 (884): 375–8. doi:10.1136/pgmj.75.884.375. PMC 1741256. PMID 10435182.
  2. ^ Kayser B (1902). "Über einen Fall von angeborener grünlicher Verfärbung des Cornea". Klin Monatsbl Augenheilk. 40 (2): 22–25.
  3. ^ Fleischer B (1903). "Zwei weitere Fälle von grünlicher Verfärbung der Kornea". Klin Monatsbl Augenheilk. 41 (1): 489–491.
  4. ^ synd/1758 at Who Named It?
  5. ^ Gerlach W, Rohrschneider W (1934). "Besteht das Pigment des Kayser-Fleischerschen Hornhautringes aus Silber?". Klin Wochenschr. 13 (2): 48–49. doi:10.1007/BF01799043.
  6. ^ "Kayser-Fleischer rings". GPnotebook.

External links

This page was last edited on 12 February 2023, at 10:07
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.