Pathology Final - Spring 2025 - Deck 4 Flashcards
(198 cards)
What does MS primarily involve?
Spinal cord, optic nerve and central white matter of the brain
When are the peak incident of MS?
Between 20-40
What is the modality of choice for demonstrating MS?
MRI since it shows scatter plaques of dymyelination
How is normal aging evidenced on imaging?
Enlargement of the ventricular systems and sulci caused by gradual loss of neurons
What are symtoms of normal aging?
Eye trouble, hearing loss, high blood pressure, decrease in mobility, agility and balance, decrease in muscle mass and stamina, high risk of accidents
What is alzheimer’s disease?
A diffuse form of progressive cerebral atrophy that develops at an earlier age than the senial period
What is alzheimer’s a form of?
Dementia
What modalities show alzeimer’s disease?
CR and MRI that show cerebral atrophy
What is Huntington’s disease?
An inherited condition primarily in men that presents in early to middle adult years causing dementia and jerky movements
What is a pathologic hallmark of Huntington’s disease?
Atrophy of the caudate nucleus and putamen
What is parkinson’s disease?
A progressive degenerative disease often called Shaking Palsy
What is parkinson’s disease characterized by?
Stooped posture, stiffness and slowness of movement, fixed facial expressions, involvuntary rhythmic tremor of the lims
When does parkinson’s disease usually show?
In middle or later life
What is cerebellar atrophy?
An isolated atrophy of the cerebellum
What is amyotrophic lateral sclerosis (ALS)?
Lou Gehrig’s disease that is characterized by widespread selective atrophy and loss of motor nerve cells
What does ALS result in?
Extensive paralysis and death from respiratory weakness
What is hydrocephalus?
A dilation of the ventricular system that is usually associated with increased intracranial pressure
What are the twp types of Hydrocephalus?
Non-communicating and communicating
What is non-communicating hydrocephalus?
An obstructive process in which CSF flow is blocked somewhere in its normal path
What is communicating hydrocephalus?
CSF flow into extraventricular subarachnoid space where it shouldn’t be cauing buildup and swelling
What is arnold-chiari malformation?
Cerebellar tonsiles herniate into foramen magnum
What are red blood cells called?
Erythrocytes
What are platelets called?
Thrombocytes
Where are erythrocytes and thrombocytes made?
In the red bone marrow