|Year : 2017 | Volume
| Issue : 5 | Page : 675-681
Misidentification of Wilson disease as Schizophrenia (1998–2013): Case report and review
Department of Psychiatry, Psychiatry and Behavioral Sciences Research Center, Addiction Institute, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
|Date of Web Publication||24-Oct-2017|
Emam Khomeini General Hospital, Razi Avenue, Sari
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Wilson's disease (WD) is a neurodegenerative disorder due to copper metabolism. Schizophrenia-like psychosis and delusional disorder are rare forms of psychiatric manifestations of WD. The lack of recognition of these signs and symptoms as being attributable to WD often leads to delays in diagnosis and management. Knowledge about relationship of the psychiatric manifestations to WD can help with the administration of adequate management aimed at both the psychiatric issues and underlying WD. The objectives of this article are to review case reports whose subject is the incorrect diagnosis of schizophrenia or schizophrenia-like syndrome in patients with WD and to detail one case of this mismanagement of the disease. A 35-year-old unmarried Iranian woman presented to the consulting psychiatrist in the emergency room after a suicide attempt due to commanding auditory hallucination. She had previous eleven admissions in psychiatric hospital with major depressive episode with psychotic features, schizoaffective disorders, and then schizophrenia diagnosis. Nineteen years after her first symptoms, it was discovered that the patient was suffering from WD. We searched Google Scholar, Ovid, PsycINFO, CINHAL, and PubMed databases from 1985 to 2015. Finally, 14 researches were entered into the study. Psychiatric manifestations may precede the diagnosis of WD and other symptoms related to neurological or hepatic impairment. Early detection of WD is important to prevent catastrophic outcome. Young patients presenting with psychiatric presentations along with abnormal movement disorder, seizure, or conversion-like symptoms should be evaluate for WD even if signs and symptoms are typically suggestive of schizophrenia or manic episode. An interdisciplinary approach with good collaboration of psychiatrists and neurologists is crucial for WD because early diagnosis and management without delay is an important for good prognosis.
Keywords: Neuropsychiatric, psychosis, psychosomatic, schizophrenia, Wilson disease
|How to cite this article:|
Elyasi F. Misidentification of Wilson disease as Schizophrenia (1998–2013): Case report and review. Indian J Psychol Med 2017;39:675-81
|How to cite this URL:|
Elyasi F. Misidentification of Wilson disease as Schizophrenia (1998–2013): Case report and review. Indian J Psychol Med [serial online] 2017 [cited 2019 Nov 12];39:675-81. Available from: http://www.ijpm.info/text.asp?2017/39/5/675/217021
| Introduction|| |
Wilson's disease (WD) is a neurodegenerative disorder due to copper metabolism. Dr. Wilson first described WD in 12 patients in 1912. The disease is described by excessive accumulation of copper in different tissues and primarily affects the liver and the brain. The lifetime prevalence is at around 1/30,000; however, a recent research of frequency with which the abnormal gene related to WD appears points to a possible higher prevalence of 1/7026. Clinically, WD generally appears between the ages of 10 and 20 years. The first presentations of the WD are hepatic (45% of the cases), neurological (35%), or psychiatric (10%). WD is often accompanied by psychiatric manifestations, which may precede signs and symptoms indicating neurological deficit. More than 50% of patients with WD exhibit psychiatric disorders and a large proportion of patients undergo psychiatric management.,
The most common psychiatric presentations of WD are mood disorders, disinhibition, behavioral disorders, personality disorders, and cognitive impairment. The prevalence of psychiatric disorders in patients with WD varies wildly (major depressive disorder, 4%–47%; psychosis, 1.4%–11.5%). Certain ATP7B gene mutations may correlate with specific personality traits that reflect these disorders. Schizophrenia-like psychosis and delusional disorder are rare forms of psychiatric manifestations of WD, and only a few cases have been reported in the literature. Furthermore, many persons with WD will have psychiatric manifestations develop after diagnosis and initiation of management or after relapses.
When psychiatric manifestations preceded hepatic or neurological involvement, the average time between the psychiatric presentations and the diagnosis of WD was 864.3 days. Knowledge of the psychiatric aspects of WD is essential for psychiatrists and other medical clinicians and allied health professionals practicing in the general medical hospital. The objectives of this article are to review case reports whose subject is the incorrect diagnosis of schizophrenia or schizophrenia-like syndrome in patients with WD and to detail one case of this mismanagement of the disease.
| Case Report|| |
A 35-year-old Iranian woman from a rural background and lower socioeconomic class (education up to the 6th standard) presented to the consulting psychiatrist in an academic general hospital. She was eventually admitted to the Intensive Care Unit after a suicide attempt, in which she ingested alkali-based detergent. The woman was intubated and placed on a ventilator for aspiration pneumonia and bacterial pneumonitis that occurred after the initial chemical pneumonitis. Communication was possible by writing. All four of her limbs exhibited involuntary jerking movements, primarily on the left side. She also complained of infrequently hearing voices that were commanding and persecutory in nature. In this admission, the laboratory results for liver function testing were as follows: total bilirubin = 2.4 mg/dl, direct bilirubin = 1.0 mg/dl, aspartate aminotransferase = 11 IU/L, and alanine aminotransferase = 31 U/L. Thrombocytopenia was present (plt: 44,000, 39,000, 12,000/mm3). Serum ceruloplasmin was markedly reduced at 0.164 g/L (reference values: 0.204–0.407 g/L); copper concentrations were significantly decreased at 50 μg/dl (reference range, 70–153 μg/dl), as 24-h urinary copper was high at 240 μg/24 h (volume: 1690 cc) (reference value up to 80 μg/24 h; WD >100 μg/24 h). Ophthalmological examination demonstrated the initial development of Kayser–Fleischer (KF) rings in the clear anterior segment of the cornea. WD was diagnosed after laboratory tests; furthermore, the patient received a diagnosis of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition Axis I psychotic disorder due to WD, with delusions. Penicillamine was administered by her main physician, a gastrointestinal specialist. Unfortunately, the patient died after 11 days due to chemical burning and its complications caused by her ingestion of detergent. Review of her history showed during her adolescence, she experienced seizures (at the age of 12 years) and received treatment with sodium valproate; she did not have a developmental retardation in comparison with others her age until the age of 9 years old. At that time, she had some behavioral problems in school and was eventually expelled from school at the age of 12 years. At the age of 17 years, the first set of severe psychiatric signs and symptoms surfaces, including negativism, commanding auditory hallucinations, persecutory delusions, and impaired verbal communication. Antipsychotic medications she was prescribed included haloperidol 20 mg/day and nortriptyline 100 mg/day. No significant improvement in her condition occurred; because of this, other antipsychotic therapies (including clozapine) were used over a period of almost 19 years; she was admitted to eleven different psychiatric wards during this time, with different diagnoses emerging [Table 1]. In addition, she experienced multiple side effects with different antipsychotics at different times – severe akathisia with haloperidol, tremor with risperidone, and cytopenia due to myelosuppression with clozapine [Table 2].
|Table 2: Significant psychiatric/physical symptom and significant events|
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In 2013, magnetic resonance imaging of the brain showed atrophic changes in the temporal lobe. Since no appropriate improvement was seen with medications, and the patient's suicidal ideations continued, a course of electroconvulsive treatments was planned and administered during her first, second, fourth, fifth, seventh, ninth, and also tenth admissions to the psychiatric ward. During the patient's last admission to the psychiatric ward, she experienced tremor in her extremities and hands, right-sided pitting edema in her right limb, falling, and swelling and ecchymosis in her right knee. Nurses said that she had hysterical movements such as pseudoseizure and voluntary falling in the ward (the falling, in retrospect, was probably involuntary rather than voluntary). Numbers from liver function testing were as follows: aspartate aminotransferase = 14 IU/L (reference range, 8–37 IU/L), alanine aminotransferase = 8U/L (reference range, 8–37 IU/L). Other laboratory values included the following: calcium, 8.1 mg/dl (reference range, 8.6–10.3 mg/dl); phosphor, 4.67 mg/dl (reference range, 2.6–4.5 mg/dl). Thrombocytopenia was also present (plt: 40,000/mm3). A hematologist was consulted due to the presence of thrombocytopenia and advised further consultations with a hepatologist. The patient was referred to the general hospital for monitoring of her medical problem. She arrived at the emergency department 9 months later, with the suicide attempt explained at the beginning of this case study.
| Discussion|| |
The presented case of WD has several specific manifestations that distinguish it from most other patients with WD. Although treated with antispsychotics, she had periods of remission and relapse, and never was symptom-free. Similar cases have been described elsewhere, but to the best of our knowledge, this case represents the longest period over which a psychotic disorder was diagnosed and treated without uncovering the underlying cause of the symptoms (19 years). Such a delay is particularly tragic as favorable outcomes depend on early discovery; the patient died after her suicidal attempt that was spurred by auditory hallucinations. She developed tremors after initiation of injectable haloperidol and severe akathisia with risperidone. She had abnormal involuntary choreoathetoid limb movements and jerky movements that were involuntary and misinterpreted as side effects of antipsychotics but that actually represented the clinical manifestation of WD.
Traditional or atypical antipsychotics have been used with the overall warning that these patients are very sensitive to antipsychotics and prone to develop multiple extrapyramidal side effects. Unfortunately, the neurologist consulted during the first admission adjusted the dose of her anticonvulsant medication (against generally accepted recommendations) due to her previous seizures, as he was unaware of the underlying cause of her condition.
Although psychiatric features are not rare in WD, their association with seizures is rare. Our patient with predominantly temporal atrophy had epileptic seizures and then psychosis. Another case study reported on three patients with psychiatric symptoms who had predominantly white matter lesions in the frontal lobe. The early manifestations were psychiatric symptoms and epileptic seizures with or without secondary generalization. The present observation found that early onset of psychiatric presentation and seizures is common in WD with white matter lesions in frontal lobes. A study from India that evaluated 350 patients with WD reported psychosis (of the schizophreniform type) in three cases only. Other literature have also reported a low prevalence of psychosis–1 out of 30 cases, 8 out of 70 cases, 3 cases of organic delusional disorder out of 45 patients, 2 out of 195 cases, and 2 out of 42 cases. The prevalence of psychosis in persons with WD varies from 0% to 11.5%. Since the early presentations of WD, few case reports have documented the occurrence of psychosis in patients with WD.,,, However, over the last two decades, case reports/series have proliferated describing psychosis in patients with WD.,,,,,,,,,,,,,,,
In our case, WD was determined by the following positive findings: (I) Presence of KF ring (II) high urinary copper level, and (III) low serum ceruloplasmin level. The gold standard for WD diagnosis is by liver biopsy with quantitative copper evaluation (copper values >3.1 μmol/g of dry liver weight). Liver biopsy was not performed for several reasons: the invasiveness of the procedure, the inability to estimate copper in dry liver tissue with the equipment available at our center, and the fact that approval for biopsy was not given by the patient's brother (her caretaker). The combination of neurological symptoms, KF rings, and a low ceruloplasmin level is considered sufficient and appropriate for the diagnosis of WD.
Copper is considered essential for brain function, and its importance in various psychiatric illnesses has been explored. Initial researches showed increased levels of copper in the hair and plasma of patients with schizophrenia compared to control groups., Abnormalities of smooth pursuit eye movements, long time considered a mark in schizophrenic patients, have been described in WD. Some researches found that an increased copper level was related to the use of psychotropic drugs, such as long-acting antipsychotic use in schizophrenic patients or anticonvulsant treatment in women was epileptic. The copper hypothesis of schizophrenic patients was abandoned in 1980 without ever being totally refuted. Wolf found that patients with schizophrenia had serum copper levels that were increased by 24% and serum ceruloplasmin levels elevated by 20% compared to control group. It was postulated that an excess of copper may affect dopamine activity through multiple copper-dependent enzymes., Another recent literature suggested that dopamine gene polymorphism may be playing a significant role in the neuropsychiatric manifestations in WD.
Co-occurrence of schizophrenic-like symptoms with WD is rare, and there are just a few case reports of WD with this type of psychiatric presentation. [Table 3] provides an overview of the case reports about this issue.,,,,,,,,,,,,,,,,,,,,,,
| Conclusions|| |
Patients with psychiatric symptoms with clues such as history of jaundice, family history of neuropsychiatric disorders, and sensitivity to typical/atypical antipsychotics should be evaluated for WD to avoid delay in diagnosis and associated morbidity. Although such patients are more commonly seen in neurological and hepatological clinics, psychiatrists must keep in mind a high level of suspicion, and consider WD in instances where the first presentation of illness is psychiatric in nature.
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[Table 1], [Table 2], [Table 3]