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PAMercer Pathophysiology Exam 2 Diseases
Diseases and their signs/symptoms
43
Medical
Graduate
02/28/2011

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Term
Locked-in Syndrome
Definition
aware and awake but cannot move or talk

caused by damage to lower neurons and brainstem
Term
Dementia
Definition
loss of 1 or more cognitive or intellectual function
Term
Alzheimer's Disease
Definition
forgetfulness, emotional upset, disorientation, confusion
Term
Selective Attention Deficit
Definition
inability to select from available, competing environmental and internal stimuli
Term
Retrograde Amnesia
Definition
loss of past memories, pathology in cerebral cortex
Term
Anterograde Amnesia
Definition
Unable to form new memories; pathology of the hippocampus and temporal lobes
Term
Executive Attention Deficit
Definition
prevents programming, verification, and correction
Term
Hydrocephaly
Definition
excess fluid within the cranial vault or subarachnoid space, decreased CSF reabsorption and more CSF produced, obstruction in ventricle(s)

Sx: Large head, h/n/v, irritability, fatigue, seizures, developmental delay, memory loss, diplopia
Term
Amyotrophic Lateral Sclerosis
(aka Lou Gehrig's Disease)
Definition
Degeneration of motor neurons

Sxs: Muscle weakness, atrophy and twitching; unable to control voluntary movement except eyes
Term
Huntington's disease
Definition
Degrading of the basal ganglia and loss of GABA

Sxs: Chorea (excessive mvmt), impaired swallowing, dementia, depression
Term
Parkinson's Disease
Definition
Muscle rigidity, tremors, slow/loss of movement, impaired speech, shuffle gait
Term
Multiple Sclerosis (MS)
Definition
Destruction of oligodendrocytes, which causes demyelination of neurons
Sxs: Numbness or weakness in limbs, optic neuritis, diplopia, tremors, fatigue, dizziness
Lhermitte's sign- bending neck forward
Term
Myasthenia Gravis
Definition
Autoimmune disorder where Antibodies black Ach receptors at post-synaptic NMJ
Sxs: ptosis, diplopia, dysphagia, muscle weakness and fatigue
Term
Diffuse Axonal Injury
(aka Shaken Baby's Syndrome)
Definition
Traumatic coma (>6 hours), retina/optic nerve stretching and hemorrhaging, damage to the corpus callosum or brainstem
Term
Spinal shock
Definition
Complete loss of reflex function below level of the lesion
Term
Concussion
Definition
Attention and memory deficits with no loss of consciousness (graded 1-4)
Term
Autonomic Hyperreflexia
Definition
high blood pressure (>200mmHg), intense HA, profuse siaphoresis, facial redness, goosebumps, nasal stuffiness
Term
Bacterial Meningitis
Definition
Nuchal rigidity, severe HA, mild sore throat, mild fever, Kernig or Brudzinski sign, decreased blood glucose, increased WBC count
Term
Poliomyelitis
Definition
Contagious viral infection (poliovirus)
Loss of reflexes, severe muscle aches or spasms, acute flaccid paralysis
Term
Poliomyositis
Definition
CT disease, myopathy--caused by bacteria, parasites, or viruses
Sxs: Dysphagia, Dysphasia, mild joint or muscle tenderness, fatigue, SOB
Term
Muscular Dystrophy
Definition
Genetic deficiency of the protein dystrophin
Sxs: muscle weakness, lack of coordination, progressive crippling, loss of mobility
Term
Encephalitis
Definition
Inflammation of the brain, viral/bacterial infection
Sxs: HA, irritability, lethargy, fever, seizures
can lead to brain damage/death
Term
Guillan Barre Syndrome
Definition
Automimmune, inflammatory disease that may be caused by undercooked food, mono, or HIV
Demyelination of peripheral nerves, motor paralysis
Term
Myopathies
Definition
Primary muscular disorder, muscle weakness
Term
Radiculopathies
Definition
inflammation of a spinal nerve root
Term
Arnold-Chiari malformation
Definition
Cerebral tonsils elongate and herniate through the foramen magnum and press on the spinal cord
Sxs: Neck pain, unsteady gait, poor motor skills, dizziness, dysphagia, double vision
Term
Spina Bifida
Definition
Protrusion of contents in the neural tube; may be caused by a folic acid deficiency in the mother
Severe cases may have neuro impairment
Term
Craniosynostosis
Definition
Bone forms too fast and new cells stop forming so the bones of the skull fuse together prematurely
Sxs: Slow or no growth of head, intracranial pressure, facial or head deformities
Term
Dandy Walker Deformity
Definition
Enlargement of the 4th ventricle with absence of the cerebellar vermis; may be caused by a cyst at the base of the skull
Sxs: Slow motor development, intracranial pressure, irritability, vomiting, convulsions
Term
Cerebral Palsy
Definition
Static brain disease due to asphyxia, fetal stroke, maternal/fetal infections, or hypoxic conditions during fetal development
Sxs: increased muscle tone, inability to control muscle movement, tremors, involuntary movement, dysphagia
NOT progressive
Term
Phenylketonuria
Definition
Inherited defect in amino acid metabolism
Term
Tay-Sachs Disease
Definition
Inherited defect in lipid metabolism; accumulation of lipids on the retinal ganglion cells
Mutated HEXA gene
Diagnostic: Cherry red spot on macula
Sxs: Mental retardation, hypertonia, hyperreflexia, blind, deaf, unable to swallow, muscular atrophy, paralysis, dementia, seizures, increased startle reflex
Term
Reye's Syndrome
Definition
Drug induced disease in children that can be caused by taking aspirin for viral infection (e.g. Chicken pox)
Sxs: Encephalopathy, enlarged firm liver
Term
Neuroblastoma
Definition
Cancer of the neural crest cells
Most common solid tumor in infants and young children (<2 years old)
Sxs depend on location
Term
Ganglioneuroma
Definition
Usually harmless
Sympathetic fiber from neural crest cells that may progress into a neuroblastoma
Term
Medulloblastoma
Definition
tumor of the cerebellum
Term
Glioma (astrocytoma, ependymomas)
Definition
Tumor in the brain that develops from the supporting cells
Sxs depend on location of tumor (HA, N/V, seizure, weakness/numbness
Term
Paget's Disease
Definition
Irregular breakdown an formation of bone tissue sue to hyperactive osteoclasts
Sxs: bones expand and weaken, nerve pain, HA, arthritis, and fractures
Term
Osteomyelitis
Definition
Infection of the bone caused by staph
Sxs: Necrotic bone, fever, and pain
Term
Giant cell tumor
Definition
Tumors that occur spontaneously in the epiphysis of the femur, tibia, radius, or humerus
Extensive bone reabsorption
Sxs: pain, weakened bone, fractures
Term
Kahler's Disease (aka myeloma)
Definition
cancer of the plasma cells that make antibodies that accumulate in the bone and may travel to the kidney
Sxs: CRAB- increased Ca+, renal failure, anemia, bone lesions
Term
Osteosarcoma
Definition
Masses of osteoid, noncalcified bone matrix and callus
Arms and legs are most common
Term
Chondrosarcoma
Definition
tumor that infiltrates trabeculae in spongy bone (metaphyses or diaphyses)
Lobules of hyaline cartilage expand/enlarge bone because of mutated chondrocytes and erosion of the cortex
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