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[Parkinsonism in chronic occupational metallic mercury intoxication]. 2003

Krzysztof Miller, and Stanisław Ochudło, and Grzegorz Opala, and Wiesław Smolicha, and Joanna Siuda
Poradnia Chorób Zawodowych, Szpital, Instytut Medycyny Pracy i Zdrowia Srodowiskowego w Sosnowcu.

Parkinson syndrome occurs in the course of chemical intoxication, especially Mn, CS2, CO. It is rarely caused by chronic mercury intoxication. We present the case of 55 year old man who was exposed to metallic mercury vapor during 33 years of working in the chemical plant at the production of chlorine. On several occassions patient was removed from contact with Hg because of the symptoms of increased Hg absorption. At the age of 52 he developed hand tremor, balance and gait disturbance with bradykinesia, paresthesias of the upper extremities, neurobehavioral abnormalities, slight memory loss, and spatial disorientation. Psychoneurological examination revealed dementia, Parkinson's syndrome and ataxia of the lower limbs. Mercury excretion in the urine, which equaled 18.3 mu\g creatinine, confirmed exposure to Hg. MRI of the head revealed cortical and cerebellar atrophy. Electroneurography examination found features of subclinical peripheral sensory axonopathy of the upper limbs. Despite atypical clinical course (parkinsonismus) chronic mercury encephalopathy was diagnosed based on documented occupational exposure and diagnostic test results.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009784 Occupational Diseases Diseases caused by factors involved in one's employment. Diseases, Occupational,Occupational Illnesses,Disease, Occupational,Illnesse, Occupational,Illnesses, Occupational,Occupational Disease,Occupational Illnesse
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D002531 Cerebellum The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills. Cerebella,Corpus Cerebelli,Parencephalon,Cerebellums,Parencephalons
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001284 Atrophy Decrease in the size of a cell, tissue, organ, or multiple organs, associated with a variety of pathological conditions such as abnormal cellular changes, ischemia, malnutrition, or hormonal changes. Atrophies
D020262 Mercury Poisoning, Nervous System Neurologic disorders associated with exposure to inorganic and organic forms of MERCURY. Acute intoxication may be associated with gastrointestinal disturbances, mental status changes, and PARAPARESIS. Chronic exposure to inorganic mercury usually occurs in industrial workers, and manifests as mental confusion, prominent behavioral changes (including psychosis), DYSKINESIAS, and NEURITIS. Alkyl mercury poisoning may occur through ingestion of contaminated seafood or grain, and its characteristic features include POLYNEUROPATHY; ATAXIA; vision loss; NYSTAGMUS, PATHOLOGIC; and DEAFNESS. (From Joynt, Clinical Neurology, 1997, Ch20, pp10-15) Mercurialism, Nervous System,Mercurialism, Neurologic,Mercury Encephalopathy,Mercury-Induced Nervous System Diseases,Minamata Disease,Nervous System Diseases, Mercury-Induced,Nervous System Poisoning, Mercury,Neurotoxicity Syndrome, Mercury,Poisoning, Mercury, Nervous System,Poisoning, Mercury, Neurologic,Encephalopathy, Mercury,Inorganic Mercury Poisoning,Mad Hatter Disease,Mad Hatter's Disease,Mercurial Neuroanesthenia,Mercurial Psychosis,Mercury Poisoning, Inorganic,Mercury Poisoning, Neurologic,Mercury Poisoning, Organic,Mercury Psychosis,Organic Mercury Poisoning,Mad Hatter Diseases,Mad Hatters Disease,Mercury Induced Nervous System Diseases,Mercury Neurotoxicity Syndrome,Mercury Neurotoxicity Syndromes,Nervous System Diseases, Mercury Induced,Nervous System Mercurialism,Neuroanesthenia, Mercurial,Neurologic Mercurialism,Neurologic Mercury Poisoning,Neurotoxicity Syndromes, Mercury,Poisoning, Inorganic Mercury,Poisoning, Neurologic Mercury,Poisoning, Organic Mercury,Psychosis, Mercurial,Psychosis, Mercury,Syndrome, Mercury Neurotoxicity,Syndromes, Mercury Neurotoxicity,System Mercurialism, Nervous
D020734 Parkinsonian Disorders A group of disorders which feature impaired motor control characterized by bradykinesia, MUSCLE RIGIDITY; TREMOR; and postural instability. Parkinsonian diseases are generally divided into primary parkinsonism (see PARKINSON DISEASE), secondary parkinsonism (see PARKINSON DISEASE, SECONDARY) and inherited forms. These conditions are associated with dysfunction of dopaminergic or closely related motor integration neuronal pathways in the BASAL GANGLIA. Autosomal Recessive Juvenile Parkinsonism,Familial Juvenile Parkinsonism,Parkinsonian Syndrome,Parkinsonism,Parkinsonism, Experimental,Parkinsonism, Juvenile,Ramsay Hunt Paralysis Syndrome,Autosomal Dominant Juvenile Parkinson Disease,Autosomal Dominant Juvenile Parkinsonism,Autosomal Dominant Parkinsonism,Autosomal Recessive Juvenile Parkinson Disease,Autosomal Recessive Parkinsonism,Chromosome 6-Linked Autosomal Recessive Parkinsonism,Experimental Parkinson Disease,Experimental Parkinsonism,Experimental Parkinsonism, MPTP-Induced,Familial Parkinson Disease, Autosomal Recessive,Juvenile Parkinson Disease,Juvenile Parkinson Disease, Autosomal Dominant,Juvenile Parkinson Disease, Autosomal Recessive,Juvenile Parkinsonism, Autosomal Dominant,Juvenile Parkinsonism, Autosomal Recessive,MPTP-Induced Experimental Parkinsonism,Parkinson Disease 2,Parkinson Disease 2, Autosomal Recessive Juvenile,Parkinson Disease Autosomal Recessive, Early Onset,Parkinson Disease, Autosomal Dominant. Juvenile,Parkinson Disease, Experimental,Parkinson Disease, Familial, Autosomal Recessive,Parkinson Disease, Juvenile,Parkinson Disease, Juvenile, Autosomal Dominant,Parkinson Disease, Juvenile, Autosomal Recessive,Parkinsonian Diseases,Parkinsonian Syndromes,Parkinsonism, Early Onset, with Diurnal Fluctuation,Parkinsonism, Early-Onset, With Diurnal Fluctuation,Parkinsonism, Juvenile, Autosomal Dominant,Parkinsonism, Juvenile, Autosomal Recessive,Chromosome 6 Linked Autosomal Recessive Parkinsonism,Diseases, Experimental Parkinson,Dominant Parkinsonism, Autosomal,Experimental Parkinson Diseases,Experimental Parkinsonism, MPTP Induced,Experimental Parkinsonisms,Juvenile Parkinsonism,Juvenile Parkinsonism, Familial,Juvenile Parkinsonisms,MPTP Induced Experimental Parkinsonism,Parkinson Diseases, Experimental,Parkinsonism, Autosomal Dominant,Parkinsonism, Autosomal Recessive,Parkinsonism, Familial Juvenile,Parkinsonism, MPTP-Induced Experimental,Parkinsonisms, Experimental,Parkinsonisms, Juvenile,Recessive Parkinsonism, Autosomal

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