"Prepared by : Dr."
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Prepared by : Dr. Abhishek Garg |
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M.D Resident 3rd year |
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Edited by : Dr. Arun kumar
sharma |
PARTICULARS OF PATIENT
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Miss PRAGYA DHITAL, |
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10 Years old girl |
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From
Gorkha , Nepal |
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Admitted on 7/4/062 |
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at
KCH / BED NO- 321 |
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IP NO- 10112 |
Presented with
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Abdominal swelling --- 1 month |
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Progressive pallor------ 1 month |
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Pain abdomen off and on |
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History of Present
Illness
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She was
apparently well 1 month back when she started developing progressively
increasing abdominal swelling mainly in left
upper abdomen associated with off and on mild pain. |
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This was associated with progressive pallor without any major
bleeds. |
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History of Present
Illness..
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Occasionally had bleeding from nose in
small amounts |
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No h/o jaundice |
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No h/o hematemesis, melena, hemoptysis. |
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No h/o blood transfusions in the past. |
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No h/o fever, rash |
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No h/o high colored urine |
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No h/o any joint pains/chest pain |
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Past medical history
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No history of any long term illness |
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No history of drug intake |
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No history of TB contact |
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No bleeding disorders in the family |
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Home delivered |
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Prenatal / intranatal / postnatal
period uneventful (according to mother) |
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Immunized as per national schedule, no
hepatitis B vaccine given |
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FAMILY HISTORY
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FATHER
- 35 years |
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MOTHER - 30 years |
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4 SIBLINGS |
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1ST – 12 years/female healthy |
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2nd – 10 years/female patient |
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3rd – 8 years/male healthy |
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4th – 6
years/male healthy |
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No other members symptomatically ever
jaundiced |
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GENERAL EXAMINATION
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Temp- 98 * F |
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Pulse- 120 /min |
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BP- 120/60 mmHg |
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RR- 19 / min |
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Pallor-
present |
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Icterus- absent |
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Edema - absent |
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Cyanosis- absent |
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Lymphadenopathy- absent |
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Clubbing-absent |
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Abdominal examination
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Distended with everted umbilicus |
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Non tender to palpation, spleen was
palpable 16 cms below left costal margin, hard in consistency with smooth and
regular surface, liver was not appreciably enlarged |
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Percussion showed no free fluid in
abdomen |
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Auscultation revealed no appreciable
bruit |
Other systemic
examination
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Respiratory examination was
unremarkable. |
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Cardiovascular examination was
unremarkable. |
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Neurological examination showed no
abnormalities. |
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Musculoskeletal examination showed no
abnormalities |
INVESTIGATIONS
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Investigations were done to evaluate
these etiologies of splenomegaly |
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Hb = 8 gm% |
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TLC = 2500/ul |
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DLC =N 60 L40 M0
E 0 |
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Platelet = 30,000 |
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ESR =45 |
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Retics = 0.2% |
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PT =19 sec ,Control =13 sec |
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Peripheral smear = Normocytic,
Hypochromic, Atypical lymphocytes few. |
Investigations contd.
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Bone marrow = Normocellular marrow.
Erythroid hyperplasia |
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Urine R/M= normal |
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Stool r/m- normal |
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X-Ray Chest PA = normal |
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Investigations contd
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USG Abdomen= Liver Normal, dilated
portal vein(12mm), Grossly enlarged spleen with normal parenchymal echo
density , No SOL. Doppler study of
portal system showed portal vein to measure 10.8 mm in caliber and show normal
ante grade blood flow. Intrahepatic portal vein tributaries are distorted,
hepatic veins are normal. Splenic vein is dilated and measures 9.0-9.4 mm in
diameter with normal ante grade flow |
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Investigations contd
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Upper GI Endoscopy:- |
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Grade IV esophageal varices |
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"Discussion"
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Discussion |
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Minor nose bleeds common problem in
children |
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Most prominent problem in this patient
is massive splenomegaly |
Causes of massive
splenomegaly
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Congestive splenomegaly due to
cirrhotic or non cirrhotic portal hypertension or splenic vein obstruction |
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Hemolytic anemias due to extramedullary
hematopoiesis |
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Chronic infections especially malaria
and kala-azar in endemic areas |
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Malignancies |
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Storage disorders ,especially Gaucher’s, and Niemann-pick disease |
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Anatomical lesions like splenic cysts,
hemangiomas or hamartomas |
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Discussion (contd)
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These findings confirmed the portal
hypertension of cirrhotic etiology for splenomegaly. |
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Causes of cirrhosis in children: |
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Hepatits B and C, |
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Bilirary cirrhosis, |
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Autoimmune cirrhosis, |
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Inherited disease (Wilson disease, cystic fibrosis, alpha-1
antitrypsin deficiency, hemochromatosis, galactosemia, and glycogen storage
disease. ) |
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(Absence of jaundice as the
presentation: unlikely of first three ) |
Further investigations
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for this patient and led to the
etiological investigations |
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Serum Copper Level:- 53 micro
mole/liter (normal:-11-24 micro mole/liter) |
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Ceruloplasmin level:- 20 micro
mole/litre (normal:-62-140) |
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Ophthalmologic examination:- KF (Kayser-Fleischer
ring) Ring with sub capsular brownish opacity. |
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Kayser-Fleischer ring)
Ring with sub capsular brownish opacity.
FINAL DIAGNOSIS
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WILSONS DISEASE + CIRRHOSIS OF LIVER +
PORTAL HYPERTENSION |
Treatment
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Patient
was started on D-Pencillamine
20mg/kg/day |
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Patient
was also referred to surgery
unit for sclerotherapy for esophageal varices. |
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And was asked to follow up after 1
month |
WILSON’S DISEASE
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Wilson disease (WD) is an inherited
disease of copper metabolism characterized by cirrhosis and degenerative
central nervous system disorder first described an American neurologist
Samuel Alexander Kinnier Wilson in 1912 |
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WD is inherited as an autosomal
recessive disorder linked to a locus on
the long arm of chromosome 13. |
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The condition is characterized by
excessive deposition of copper in the liver, brain, and other tissues. The
major physiologic aberration is excessive absorption of copper from the small
intestine and decreased excretion of copper by the liver. |
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"In Wilson disease,"
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In Wilson disease, the processes of
incorporation of copper into ceruloplasmin and excretion of excess copper
into bile are impaired. The transport of copper by the copper-transporting
P-type ATPase is defective in Wilson disease secondary to one of several
mutations in the ATP7B gene. The excess copper acts as a promoter of free
radical formation and causes oxidation of lipids and proteins. |
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Organ dysfunction in patients with WD
results from inadequate biliary excretion of copper and subsequent copper
deposition, most notably in the liver and central nervous system. |
Demography
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It occurs world-wide with an estimated
prevalence of 1 in 30–50
000. No data exists on prevalence in
Nepal |
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Case series of 19 patients has been
published recently (Nepal Journal of Neuroscience, Volume 1, Number 2, 2004) |
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Certain features of Wilson's disease
(WD) in Asia have been found to be different from those in other continents. |
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In many case series from india, this
disease is noted to manifest at a younger age in Indian children. The average
intake of copper in India ranges from 5.7-7.1 mg/day and is higher than the
reported 0.34-1.1 mg/day in Western countries. The practice of cooking food
in copper/copper alloy pots might be contributory. |
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Presentation of the
disease
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The clinical presentations can be
extremely varied viz: all forms of acute and chronic liver disease, minimal
to severe neurological disease,
psychiatric problems, bony deformities, hemolytic anemia and endocrine
manifestations. |
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Age of presentation varies from 4 to 60
years though majority present before the age of 30 years. The younger the
patient, the more likely is the hepatic involvement and after 20 years of age
neurological symptoms predominate. KF ring may be absent in young patient
with liver disease but are always present in patient with neurological
symptoms. |
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Untreated WD is uniformly fatal. Death
results from hepatic, renal, or hematological complications, generally at the
age of 30 years. |
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Gastrointestinal System
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Hepatic presentation: |
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Most patients including asymptomatic
demonstrate some degree of hepatic damage. Anorexia, vague abdominal pain,
lethargy and epistaxis are non specific symptoms. |
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Most common presentation is that of
chronic liver disease with signs of liver cell failure and portal
hypertension |
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Some patients present as acute
hepatitis causing initial diagnostic confusion with infective hepatitis |
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Hepatic insufficiency may develop
rapidly and result in signs of fulminant hepatic failure |
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Gallstones have been associated with WD
in children |
Neuro-psychiatric
manifestations
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Central nervous system pathology in WD
results from copper deposition in the basal ganglia. |
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Patients may report central nervous
system signs and symptoms, such as drooling, speech changes, incoordination,
tremor, difficulty with fine motor tasks, and gait difficulties. |
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Psychiatric manifestations include
compulsive behavior, aggression, depression, impulsive behavior, and phobias. |
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The patient or parent often reports
deterioration in school or job performance. Intellect is unchanged. |
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KF rings and WD
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Kayser-Fleischer rings are 1-3 mm and
consist of copper granules in the stromal layer of the eye. |
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Color changes are visible only in the
Descemet membrane and typically are described as a golden brown, brownish
green, bronze, or tannish green color seen in the limbic area of the eye. |
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No visual impairments are associated
with the color changes, which may be detected with the naked eye, although
slit lamp examination is mandatory for confirmation. |
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KF rings are seen in 90% of children
with neurological symptoms, 50-60% without neurological symptoms and in 10%
of siblings with asymptomatic disease. |
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KF rings start as a small crescent at
the top of the limbus and spread inferiorly then laterally and finally
medially to become circumferential. |
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The rings fade and disappear with
appropriate chelation therapy in 3-5 years in the reverse order of
appearance. |
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Renal disease
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The product of the WD gene is expressed
in renal tissue, but whether the renal symptoms are primary or secondary to
release of copper from the liver is unknown. |
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Renal complications tend to be
functional changes unrelated to identifiable histologic findings. |
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Rarely, patients with WD develop renal
stones and associated symptoms. Renal stones are precipitated by
hypercalciuria and poor urine acidification. Therapy with copper-chelating
agents can improve renal function |
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Muskuloskeletal system
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Skeletal abnormalities in patients with
WD are also highly variable and include osteoporosis, osteomalacia, rickets,
spontaneous fractures, and polyarthritis. |
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Knock knees presenting as refractory
rickets is considered common presentation of WD in India. |
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Cardio vascular disease
in WD
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Disorders such as rhythm abnormalities
and increased autonomic tone, have been described in patients with WD. |
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Autopsy findings have included
hypertrophy, small vessel disease, and focal inflammation. |
Hematological
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Patients with WD exhibit signs of
anemia, presumably due to oxidative injury of the cell membrane by excess
copper. |
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Acute or recurrent coomb’s negative
hemolytic anemia is sometimes a presenting feature which may or may not be
associated with liver dysfunction. |
Skin
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Skin pigmentation and a bluish
discoloration at the base of the fingernails (azure lunulae) have been
described in patients with WD. |
Diagnosis
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No single test is diagnostic by itself,
and a group of tests needs to be done |
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Laboratory results in patients with WD
include the following: |
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Serum ceruloplasmin levels lower than
20 mg/dL(but 5-40%of patients have normal ceruloplasmin) |
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Low total serum copper levels(but are
seldom diagnostic, The levels may be low, normal or high in WD) |
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Increased urinary copper excretion:
>100 mcg/d (increased excretion
after penicillamine dose is more diagnostic) |
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Hepatic copper is the single best
predictive marker for WD and considered the gold standard, with values
usually above 250 mcg/g dry weight of liver
( this facility is seldom available in country like ours) |
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A complete Kayser–Fleischer (KF) ring
indicates long-standing disease and severe Cu overload. |
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Other findings
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Results of copper stain testing often
are negative early in the disease. Negative results of copper staining of
liver biopsy specimens do not exclude the diagnosis, since stored copper may
be distributed heterogeneously. |
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The following laboratory results may be
observed in patients with WD: |
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Elevated aminotransferase levels |
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Abnormal results on coagulation tests |
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Hemolytic anemia |
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Aminoaciduria, glycosuria, uric
aciduria, and calciuria |
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Mutational analysis and haplotype
analysis is being pursued for diagnosis as well as carrier state detection in
the siblings. |
Neuroimaging studies
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CT scans of the brain in patients with
WD reveal hypodense regions in the basal ganglia (caudate nucleus, putamen,
globus pallidus). Ventricular dilatation, brainstem atrophy, and posterior
fossa atrophy are other possible findings. Extent of involvement as
demonstrated on CT scans does not provide prognostic information. |
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Radiographs are not uniformly
recommended as part of the workup for WD in children because musculoskeletal
abnormalities rarely are identified in the pediatric population. |
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In a neurological
setting, diagnosis of WD is easier, as a
KF ring would be positive in almost all cases and along
with either a low ceruloplasmin or high urinary copper,
would be diagnostic. In liver disease, diagnosis can be
more complex. WD is strongly suggested by any two of
the following – low ceruloplasmin, high urinary copper,
presence of KF rings, and confirmed by a high hepatic
Cu. If a liver biopsy is not possible due to coagulopathy,
but other investigations are suggestive of WD, chelation
therapy can be started immediately. Liver biopsy must
then be done at the earliest opportunity, as hepatic copper may remain elevated
despite years of therapy and clin-
ical improvement
Medical care
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Once the diagnosis of WD is made,
treatment is crucial to avoid fatal outcome. Medical treatment consists of
dietary restriction coupled with
various copper-chelating medications. |
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Dietary restriction alone doesn’t
prevent or control wilson’s disease, high amount of copper containing foods(
nuts ,meat and fish ,chocolates, spinach etc) should be avoided . |
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Continuous life long drug therapy is
essential ;initially to reduce copper
to sub toxic levels and subsequently to maintain a negative copper
balance. |
"Current drug
therapy for wilsons..."
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Current drug therapy for wilsons
disease |
Further care
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Clinical evaluation, liver function
tests, 24 hour urinary copper, KF
rings must be monitored six monthly initially and yearly thereafter. |
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Scholastic and vocational
rehabilitation is required for neurological handicaps along with
considerations for social problem of costly treatment. |
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Liver transplant is indicated in
patients with WD with fulminant hepatic failure and/or disease that is
worsening despite chelation therapy. Prognostic criteria has been set for patients
presenting with fulminant hepatitis. |
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Sibling evaluation is mandatory for
occult WD or carrier status of WD gene. |
Slide 41
"Outcome in wilson
disease"
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Outcome in wilson disease |
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Despite adequate chelation therapy the
outcome is unpredictable with 48% mortality in hospital series. Common
outcome seen are: |
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Rapid and complete improvement of
hepatic lesions including early cirrhosis |
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Initial deterioration of neurological
symptoms but with eventual improvement with few residual handicaps (speech
and handwriting) |
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Relentless progression and death as in
fulminant hepatic failure |
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Relentless progression and death in
advanced cirrhosis |
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Normal healthy outcome in asymptomatic
siblings of index patient who take regular chelation therapy |
"A poor prognosis
(i.e"
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A poor prognosis (i.e. rapid fulminant
hepatic failure) has been reported in patients who discontinue chelation
therapy. |
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Relatively favorable outcome has been
reported after liver transplant, with reported decrease in neurologic
symptoms. Continued chelation therapy was not necessarily required post
transplantation. |
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