What condition is associated with a Kayser-Fleischer ring?

• A. Wilson's disease
• B. DiGeorge's syndrome
• C. Gonococcal keratitis
• D. Andersen's disease

Answer: (A)

A Kayser-Fleischer ring is a golden to greenish-brown ring that is seen at the corneal margin of the eye. It is formed by the deposition of copper, which is a key characteristic of Wilson's disease. This genetic disorder results in excessive accumulation of copper in the body due to a defect in copper metabolism. The presence of the Kayser-Fleischer ring is both diagnostic and indicative of the systemic effects of copper overload, particularly in the liver and brain, which can lead to neurological and hepatic complications.

In contrast, the other conditions listed do not involve copper metabolism or the formation of such a ring. DiGeorge's syndrome is a genetic disorder affecting development, Gonococcal keratitis is an infection of the eye caused by Neisseria gonorrhoeae, and Andersen's disease, also known as Glycogen storage disease type IV, involves issues with glycogen metabolism rather than copper. Thus, the association of the Kayser-Fleischer ring with Wilson's disease makes it the correct choice.