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alkaptonuria
a rare recessive metabolic anomaly marked by ochronosis and the presence of alkapton in the urine
alkaptonuria: a rare recessive metabolic anomaly marked by ochronosis and the presence of alkapton in the urine
nervous_disorder
a disorder of the nervous system
nervous_disorder: a disorder of the nervous system
brain_damage
injury to the brain that impairs its functions (especially permanently); can be caused by trauma to the head, infection, hemorrhage, inadequate oxygen, genetic abnormality, etc.
brain_damage: injury to the brain that impairs its functions (especially permanently); can be caused by trauma to the head, infection, hemorrhage, inadequate oxygen, genetic abnormality, etc.
akinesis
motionlessness attributable to a temporary paralysis
akinesis: motionlessness attributable to a temporary paralysis
alalia
paralysis of the vocal cords resulting in an inability to speak
alalia: paralysis of the vocal cords resulting in an inability to speak
brain_disorder
any disorder or disease of the brain
brain_disorder: any disorder or disease of the brain
cystoplegia
paralysis of the urinary bladder
cystoplegia: paralysis of the urinary bladder
epilepsy
a disorder of the central nervous system characterized by loss of consciousness and convulsions
epilepsy: a disorder of the central nervous system characterized by loss of consciousness and convulsions
akinetic_epilepsy
epilepsy characterized by akinesia
akinetic_epilepsy: epilepsy characterized by akinesia
cortical_epilepsy
epilepsy in which the attacks begins with an isolated disturbance of cerebral function (as a twitching of a limb or an illusory sensation or a mental disturbance)
cortical_epilepsy: epilepsy in which the attacks begins with an isolated disturbance of cerebral function (as a twitching of a limb or an illusory sensation or a mental disturbance)
focal_seizure
transitory disturbance in motor or sensory function resulting from abnormal cortical activity
focal_seizure: transitory disturbance in motor or sensory function resulting from abnormal cortical activity
raptus_hemorrhagicus
seizure caused by a sudden profuse hemorrhage
raptus_hemorrhagicus: seizure caused by a sudden profuse hemorrhage
diplegia
paralysis of corresponding parts on both sides of the body
diplegia: paralysis of corresponding parts on both sides of the body
protuberance
the condition of being protuberant; the condition of bulging out
protuberance: the condition of being protuberant; the condition of bulging out
grand_mal_epilepsy
epilepsy in which the attacks involve loss of consciousness and tonic spasms of the musculature followed by generalized jerking
grand_mal_epilepsy: epilepsy in which the attacks involve loss of consciousness and tonic spasms of the musculature followed by generalized jerking
Jacksonian_epilepsy
focal epilepsy in which the attack usually moves from distal to proximal limb muscles on the same side of the body
Jacksonian_epilepsy: focal epilepsy in which the attack usually moves from distal to proximal limb muscles on the same side of the body
myoclonus_epilepsy
epilepsy characterized by clonus of muscle groups and progressive mental deterioration and genetic origin
myoclonus_epilepsy: epilepsy characterized by clonus of muscle groups and progressive mental deterioration and genetic origin
petit_mal_epilepsy
epilepsy characterized by paroxysmal attacks of brief clouding of consciousness (and possibly other abnormalities)
petit_mal_epilepsy: epilepsy characterized by paroxysmal attacks of brief clouding of consciousness (and possibly other abnormalities)
absence
the occurrence of an abrupt, transient loss or impairment of consciousness (which is not subsequently remembered), sometimes with light twitching, fluttering eyelids, etc.; common in petit mal epilepsy
absence: the occurrence of an abrupt, transient loss or impairment of consciousness (which is not subsequently remembered), sometimes with light twitching, fluttering eyelids, etc.; common in petit mal epilepsy
complex_absence
an absence seizure accompanied by other abnormalities (atonia or automatisms or vasomotor changes)
complex_absence: an absence seizure accompanied by other abnormalities (atonia or automatisms or vasomotor changes)
pure_absence
an absence seizure without other complications; followed by 3-per-sec brainwave spikes
pure_absence: an absence seizure without other complications; followed by 3-per-sec brainwave spikes
subclinical_absence
a transient impairment of cortical function demonstrable only by 3-per-second brainwave spikes
subclinical_absence: a transient impairment of cortical function demonstrable only by 3-per-second brainwave spikes
musicogenic_epilepsy
reflex epilepsy induced by music
musicogenic_epilepsy: reflex epilepsy induced by music
photogenic_epilepsy
reflex epilepsy induced by a flickering light
photogenic_epilepsy: reflex epilepsy induced by a flickering light
posttraumatic_epilepsy
a convulsive epileptic state caused by a head injury
posttraumatic_epilepsy: a convulsive epileptic state caused by a head injury
procursive_epilepsy
epilepsy in which a seizure is induced by whirling or running
procursive_epilepsy: epilepsy in which a seizure is induced by whirling or running
progressive_vaccinia
a severe or even fatal form of vaccinia that occurs mainly in persons with an immunological deficiency; characterized by progressive enlargement of the initial lesion
progressive_vaccinia: a severe or even fatal form of vaccinia that occurs mainly in persons with an immunological deficiency; characterized by progressive enlargement of the initial lesion
psychomotor_epilepsy
epilepsy characterized clinically by impairment of consciousness and amnesia for the episode; often involves purposeful movements of the arms and legs and sometimes hallucinations
psychomotor_epilepsy: epilepsy characterized clinically by impairment of consciousness and amnesia for the episode; often involves purposeful movements of the arms and legs and sometimes hallucinations
reflex_epilepsy
a form of epilepsy in which attacks are induced by peripheral stimulation
reflex_epilepsy: a form of epilepsy in which attacks are induced by peripheral stimulation
sensory_epilepsy
focal epilepsy initiated by somatosensory phenomena
sensory_epilepsy: focal epilepsy initiated by somatosensory phenomena
status_epilepticus
a condition in which there are continuing attacks of epilepsy without intervals of consciousness; can lead to brain damage and death
status_epilepticus: a condition in which there are continuing attacks of epilepsy without intervals of consciousness; can lead to brain damage and death
tonic_epilepsy
epilepsy in which the body is rigid during the seizure
tonic_epilepsy: epilepsy in which the body is rigid during the seizure
Erb's_palsy
paralysis of the arm resulting from injury to the brachial plexus (usually during childbirth)
Erb's_palsy: paralysis of the arm resulting from injury to the brachial plexus (usually during childbirth)
nympholepsy
a frenzy of emotion; as for something unattainable
nympholepsy: a frenzy of emotion; as for something unattainable
apraxia
inability to make purposeful movements
apraxia: inability to make purposeful movements
ataxia
inability to coordinate voluntary muscle movements; unsteady movements and staggering gait
ataxia: inability to coordinate voluntary muscle movements; unsteady movements and staggering gait
Friedreich's_ataxia
sclerosis of the posterior and lateral columns of the spinal cord; characterized by muscular weakness and abnormal gait; occurs in children
Friedreich's_ataxia: sclerosis of the posterior and lateral columns of the spinal cord; characterized by muscular weakness and abnormal gait; occurs in children
hereditary_cerebellar_ataxia
nervous disorder of late childhood and early adulthood; characterized by ataxic gait and hesitating or explosive speech and nystagmus
hereditary_cerebellar_ataxia: nervous disorder of late childhood and early adulthood; characterized by ataxic gait and hesitating or explosive speech and nystagmus
atopognosia
absence or loss of topognosia; inability to locate correctly a point of touch
atopognosia: absence or loss of topognosia; inability to locate correctly a point of touch
brachydactyly
abnormal shortness of fingers and toes
brachydactyly: abnormal shortness of fingers and toes
cryptorchidy
failure of one or both testes to move into the scrotum as the male fetus develops
cryptorchidy: failure of one or both testes to move into the scrotum as the male fetus develops
monorchism
failure of one testes to descend into the scrotum
monorchism: failure of one testes to descend into the scrotum
dyskinesia
abnormality in performing voluntary muscle movements
dyskinesia: abnormality in performing voluntary muscle movements
tardive_dyskinesia
involuntary rolling of the tongue and twitching of the face or trunk or limbs; often occurs in patients with Parkinsonism who are treated with phenothiazine
tardive_dyskinesia: involuntary rolling of the tongue and twitching of the face or trunk or limbs; often occurs in patients with Parkinsonism who are treated with phenothiazine
deviated_septum
abnormal displacement of any wall that separates two chambers (usually in the nasal cavity)
deviated_septum: abnormal displacement of any wall that separates two chambers (usually in the nasal cavity)
deviated_nasal_septum
abnormal shift in location of the nasal septum; a common condition causing obstruction of the nasal passages and difficulty in breathing and recurrent nosebleeds
deviated_nasal_septum: abnormal shift in location of the nasal septum; a common condition causing obstruction of the nasal passages and difficulty in breathing and recurrent nosebleeds
dextrocardia
abnormal condition where the heart is located toward the right side of the chest
dextrocardia: abnormal condition where the heart is located toward the right side of the chest
ectrodactyly
congenital abnormality involving the absence of some fingers or toes
ectrodactyly: congenital abnormality involving the absence of some fingers or toes
enteroptosis
an abnormally downward position of the intestines in the abdominal cavity
enteroptosis: an abnormally downward position of the intestines in the abdominal cavity
erethism
an abnormally high degree of irritability or sensitivity to stimulation of an organ or body part
erethism: an abnormally high degree of irritability or sensitivity to stimulation of an organ or body part
fetal_distress
an abnormal condition of a fetus; usually discovered during pregnancy and characterized by an abnormal heart rhythm
fetal_distress: an abnormal condition of a fetus; usually discovered during pregnancy and characterized by an abnormal heart rhythm
multiple_sclerosis
a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers
multiple_sclerosis: a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers
paralysis_agitans
a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination
paralysis_agitans: a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination
cerebral_palsy
a loss or deficiency of motor control with involuntary spasms caused by permanent brain damage present at birth
cerebral_palsy: a loss or deficiency of motor control with involuntary spasms caused by permanent brain damage present at birth
chorea
any of several degenerative nervous disorders characterized by spasmodic movements of the body and limbs
chorea: any of several degenerative nervous disorders characterized by spasmodic movements of the body and limbs
choriomeningitis
a cerebral meningitis with cellular infiltration of the meninges
choriomeningitis: a cerebral meningitis with cellular infiltration of the meninges
flaccid_paralysis
weakness or loss of muscle tone resulting from injury or disease of the nerves innervating the muscles
flaccid_paralysis: weakness or loss of muscle tone resulting from injury or disease of the nerves innervating the muscles
orthochorea
a form of chorea in which spasms occur mainly when the patient is erect
orthochorea: a form of chorea in which spasms occur mainly when the patient is erect
Sydenham's_chorea
chorea occurring chiefly in children and associated with rheumatic fever
Sydenham's_chorea: chorea occurring chiefly in children and associated with rheumatic fever
tarantism
a nervous disorder characterized by an uncontrollable impulse to dance; popularly attributed to bite of the southern European tarantula or wolf spider
tarantism: a nervous disorder characterized by an uncontrollable impulse to dance; popularly attributed to bite of the southern European tarantula or wolf spider
agraphia
a loss of the ability to write or to express thoughts in writing because of a brain lesion
agraphia: a loss of the ability to write or to express thoughts in writing because of a brain lesion
acataphasia
a disorder in which a lesion to the central nervous system leaves you unable to formulate a statement or to express yourself in an organized manner
acataphasia: a disorder in which a lesion to the central nervous system leaves you unable to formulate a statement or to express yourself in an organized manner
aphagia
loss of the ability to swallow
aphagia: loss of the ability to swallow
amaurosis
partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain
amaurosis: partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain
amblyopia
visual impairment without apparent organic pathology
amblyopia: visual impairment without apparent organic pathology
ametropia
(ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
ametropia: (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
emmetropia
(ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
emmetropia: (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
aniseikonia
visual defect in which the shape and size of an ocular image differ in the two eyes
aniseikonia: visual defect in which the shape and size of an ocular image differ in the two eyes
anorthopia
distorted vision in which straight lines appear curved
anorthopia: distorted vision in which straight lines appear curved
aphakia
absence of the natural lens of the eye (usually resulting from the removal of cataracts)
aphakia: absence of the natural lens of the eye (usually resulting from the removal of cataracts)
aphasia
inability to use or understand language (spoken or written) because of a brain lesion
aphasia: inability to use or understand language (spoken or written) because of a brain lesion
auditory_aphasia
an impairment in understanding spoken language that is not attributable to hearing loss
auditory_aphasia: an impairment in understanding spoken language that is not attributable to hearing loss
conduction_aphasia
aphasia in which the lesion is assumed to be in the association tracts connecting the various language centers in the brain; patient's have difficulty repeating a sentence just heard
conduction_aphasia: aphasia in which the lesion is assumed to be in the association tracts connecting the various language centers in the brain; patient's have difficulty repeating a sentence just heard
global_aphasia
loss of all ability to communicate
global_aphasia: loss of all ability to communicate
motor_aphasia
aphasia in which expression by speech or writing is severely impaired
motor_aphasia: aphasia in which expression by speech or writing is severely impaired
nominal_aphasia
inability to name objects or to recognize written or spoken names of objects
nominal_aphasia: inability to name objects or to recognize written or spoken names of objects
transcortical_aphasia
a general term for aphasia that results from lesions outside of Broca's area or Wernicke's area of the cerebral cortex
transcortical_aphasia: a general term for aphasia that results from lesions outside of Broca's area or Wernicke's area of the cerebral cortex
visual_aphasia
inability to perceive written words
visual_aphasia: inability to perceive written words
Wernicke's_aphasia
aphasia characterized by fluent but meaningless speech and severe impairment of the ability understand spoken or written words
Wernicke's_aphasia: aphasia characterized by fluent but meaningless speech and severe impairment of the ability understand spoken or written words
dyscalculia
impaired ability to learn grade-appropriate mathematics
dyscalculia: impaired ability to learn grade-appropriate mathematics
dysgraphia
impaired ability to learn to write
dysgraphia: impaired ability to learn to write
dyslexia
impaired ability to learn to read
dyslexia: impaired ability to learn to read
dysphasia
an impairment of language (especially speech production) that is usually due to brain damage
dysphasia: an impairment of language (especially speech production) that is usually due to brain damage
agnosia
inability to recognize objects by use of the senses
agnosia: inability to recognize objects by use of the senses
anarthria
partial or total loss of articulate speech resulting from lesions of the central nervous system
anarthria: partial or total loss of articulate speech resulting from lesions of the central nervous system
auditory_agnosia
inability to recognize or understand the meaning of spoken words
auditory_agnosia: inability to recognize or understand the meaning of spoken words
visual_agnosia
inability to recognize or interpret objects in the visual field
visual_agnosia: inability to recognize or interpret objects in the visual field
Creutzfeldt-Jakob_disease
rare (usually fatal) brain disease (usually in middle age) caused by an unidentified slow virus; characterized by progressive dementia and gradual loss of muscle control
Creutzfeldt-Jakob_disease: rare (usually fatal) brain disease (usually in middle age) caused by an unidentified slow virus; characterized by progressive dementia and gradual loss of muscle control
occlusion
closure or blockage (as of a blood vessel)
occlusion: closure or blockage (as of a blood vessel)
laryngospasm
a closure of the larynx that blocks the passage of air to the lungs
laryngospasm: a closure of the larynx that blocks the passage of air to the lungs
embolism
occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle)
embolism: occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle)
air_embolism
obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving
air_embolism: obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving
fat_embolism
serious condition in which fat blocks an artery; fat can enter the blood stream after a long bone is fractured or if adipose tissue is injured or as a result of a fatty liver
fat_embolism: serious condition in which fat blocks an artery; fat can enter the blood stream after a long bone is fractured or if adipose tissue is injured or as a result of a fatty liver
pulmonary_embolism
blockage of the pulmonary artery by foreign matter or by a blood clot
pulmonary_embolism: blockage of the pulmonary artery by foreign matter or by a blood clot
thromboembolism
occlusion of a blood vessel by an embolus that has broken away from a thrombus
thromboembolism: occlusion of a blood vessel by an embolus that has broken away from a thrombus
thrombosis
the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel
thrombosis: the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel
cerebral_thrombosis
a blood clot in a cerebral artery or vein
cerebral_thrombosis: a blood clot in a cerebral artery or vein
coronary_occlusion
occlusion of a coronary artery caused either by progressive atherosclerosis or by a blood clot
coronary_occlusion: occlusion of a coronary artery caused either by progressive atherosclerosis or by a blood clot
coronary_heart_disease
a heart disease due to an abnormality of the arteries that supply blood and oxygen to the heart
coronary_heart_disease: a heart disease due to an abnormality of the arteries that supply blood and oxygen to the heart
coronary_thrombosis
obstruction of blood flow in a coronary artery by a blood clot (thrombus)
coronary_thrombosis: obstruction of blood flow in a coronary artery by a blood clot (thrombus)