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===Liver disease===
===Liver disease===


Liver disease may present as [[tiredness]], increased bleeding tendency or confusion (due to [[hepatic encephalopathy]]) and[[portal hypertension]]. The latter, a condition in which the pressure on the [[portal vein]] is markedly increased, leads to[[esophageal varices]] (blood vessels in the [[esophagus]]) that may bleed in a life-threatening fashion, [[splenomegaly]](enlargement of the spleen) and [[ascites]] (accumulation of fluid in the abdominal cavity). On examination, signs of chronic liver disease such as [[spider angioma|spider naevi]] (small distended blood vessels, usually on the chest) may be observed. [[Chronic active hepatitis]] has caused [[cirrhosis]] of the liver in most patients by the time they develop symptoms. While most people with cirrhosis have an increased risk of [[hepatocellular carcinoma]] (liver cancer), this risk is relatively very low in Wilson's disease.<ref name=Ala/>
Liver disease may present as [[tiredness]], increased bleeding tendency or confusion (due to [[hepatic encephalopathy]]) and [[portal hypertension]]. The latter, a condition in which the pressure on the [[portal vein]] is markedly increased, leads to [[esophageal varices]] (blood vessels in the [[esophagus]]) that may bleed in a life-threatening fashion, [[splenomegaly]](enlargement of the spleen) and [[ascites]] (accumulation of fluid in the abdominal cavity). On examination, signs of chronic liver disease such as [[spider angioma|spider naevi]] (small distended blood vessels, usually on the chest) may be observed. [[Chronic active hepatitis]] has caused [[cirrhosis]] of the liver in most patients by the time they develop symptoms. While most people with cirrhosis have an increased risk of [[hepatocellular carcinoma]] (liver cancer), this risk is relatively very low in Wilson's disease.<ref name=Ala/>


About 5% of all patients are diagnosed only when they develop fulminant [[acute liver failure]], often in the context of a[[hemolytic anemia]] (anemia due to the destruction of red blood cells). This leads to abnormalities in protein production (identified by deranged [[coagulation]]) and metabolism by the liver. The deranged protein metabolism leads to the accumulation of waste products such as [[ammonia]] in the bloodsteam. When these irritate the [[brain]], the patient develops [[hepatic encephalopathy]] (confusion, coma, seizures and finally life-threatening [[Cerebral edema|swelling of the brain]]).<ref name=Ala/>
About 5% of all patients are diagnosed only when they develop fulminant [[acute liver failure]], often in the context of a [[hemolytic anemia]] (anemia due to the destruction of red blood cells). This leads to abnormalities in protein production (identified by deranged [[coagulation]]) and metabolism by the liver. The deranged protein metabolism leads to the accumulation of waste products such as [[ammonia]] in the bloodsteam. When these irritate the [[brain]], the patient develops [[hepatic encephalopathy]] (confusion, coma, seizures and finally life-threatening [[Cerebral edema|swelling of the brain]]).<ref name=Ala/>


===Neuropsychiatric symptoms===
===Neuropsychiatric symptoms===

Revision as of 19:48, 22 August 2012

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

History and symptoms

The main sites of copper accumulation are the liver and the brain, and consequently liver disease and neuropsychiatric symptoms are the main features that lead to diagnosis.[1] Patients with liver problems tend to come to medical attention earlier, generally as children or teenagers, than those with neurological and psychiatric symptoms, who tend to be in their twenties or older. Some are identified only because relatives have been diagnosed with Wilson's disease; many of these patients, when tested, turn out to have been experiencing symptoms of the condition but haven't received a diagnosis.[2]

Liver disease

Liver disease may present as tiredness, increased bleeding tendency or confusion (due to hepatic encephalopathy) and portal hypertension. The latter, a condition in which the pressure on the portal vein is markedly increased, leads to esophageal varices (blood vessels in the esophagus) that may bleed in a life-threatening fashion, splenomegaly(enlargement of the spleen) and ascites (accumulation of fluid in the abdominal cavity). On examination, signs of chronic liver disease such as spider naevi (small distended blood vessels, usually on the chest) may be observed. Chronic active hepatitis has caused cirrhosis of the liver in most patients by the time they develop symptoms. While most people with cirrhosis have an increased risk of hepatocellular carcinoma (liver cancer), this risk is relatively very low in Wilson's disease.[1]

About 5% of all patients are diagnosed only when they develop fulminant acute liver failure, often in the context of a hemolytic anemia (anemia due to the destruction of red blood cells). This leads to abnormalities in protein production (identified by deranged coagulation) and metabolism by the liver. The deranged protein metabolism leads to the accumulation of waste products such as ammonia in the bloodsteam. When these irritate the brain, the patient develops hepatic encephalopathy (confusion, coma, seizures and finally life-threatening swelling of the brain).[1]

Neuropsychiatric symptoms

About half the patients with Wilson's have neurological or psychiatric problems. Most patients initially have mild cognitive deterioration and clumsiness, as well as changes in behavior. Specific neurological symptoms then follow, often in the form ofparkinsonism (increased rigidity and slowing of routine movements) with or without a typical hand tremor, ataxia (lack of coordination) or dystonia (twisting and repetitive movements of part of the body). Seizures and migraine appear to be more common in Wilson's disease.[1]

Psychiatric problems due to Wilson's disease may include behavioral changes, depression, anxiety andpsychosis.[1]

Other organ systems

A Kayser-Fleischer ring in a patient with symptoms suggestive of Wilson's disease

Various medical conditions have been linked with copper accumulation in Wilson's disease:

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Ala A, Walker AP, Ashkan K, Dooley JS, Schilsky ML (2007). "Wilson's disease". Lancet. 369 (9559): 397–408. doi:10.1016/S0140-6736(07)60196-2. PMID 17276780.
  2. 2.0 2.1 Merle U, Schaefer M, Ferenci P, Stremmel W (2007). "Clinical presentation, diagnosis and long-term outcome of Wilson's disease: a cohort study". Gut. 56 (1): 115–20. doi:10.1136/gut.2005.087262. PMID 16709660.

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