Medicine Flashcards

(35 cards)

1
Q

Name the four major types of Parkinson Plus Syndromes.

A

Progressive Supranuclear Palsy (PSP), Multiple System Atrophy (MSA), Corticobasal Degeneration (CBD), and Dementia with Lewy Bodies (DLB).

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2
Q

What differentiates Parkinson Plus Syndromes from idiopathic Parkinson’s disease?

A

Poor response to levodopa and the presence of additional neurological signs such as early falls, autonomic dysfunction, or dementia.

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3
Q

What is the hallmark clinical feature of PSP?

A

Supranuclear gaze palsy, particularly difficulty with downward gaze.

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4
Q

What is the ‘hummingbird sign’ in PSP?

A

Atrophy of the midbrain on MRI, resembling a hummingbird or penguin in sagittal view.

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5
Q

What is the primary pathological finding in PSP?

A

Accumulation of tau protein in neurons and glia.

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6
Q

What are the subtypes of MSA?

A

MSA-P (parkinsonian type)
MSA-C (cerebellar type)
MSA- A (Autonomic type) = Shy Dragger syndrome

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7
Q

Which autonomic dysfunction is a hallmark of MSA?

A

Orthostatic hypotension.

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8
Q

What is the ‘hot cross bun sign’?

A

Cross-shaped hyperintensity in the pons on MRI, seen in MSA-C.

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9
Q

Name a distinguishing feature of MSA compared to Parkinson’s disease.

A

Early autonomic dysfunction and poor response to levodopa.

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10
Q

Which protein accumulates pathologically in MSA?

A

Alpha-synuclein in oligodendrocytes.

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11
Q

What is the hallmark motor abnormality in CBD?

A

Asymmetric rigidity and apraxia, often referred to as ‘alien limb syndrome.’

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12
Q

Which cognitive domain is primarily affected in CBD?

A

Apraxia and visuospatial dysfunction.

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13
Q

What is the typical age of onset for CBD?

A

Around 60–70 years of age.

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14
Q

Which part of the brain is predominantly affected in CBD?

A

The parietal cortex and basal ganglia.

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15
Q

What imaging feature supports the diagnosis of CBD?

A

Asymmetric cortical atrophy, especially in the parietal lobe, on MRI.

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16
Q

What are the core features of DLB?

A

Fluctuating cognition, visual hallucinations, and parkinsonism.

17
Q

Which symptom differentiates DLB from Parkinson’s disease dementia?

A

Early cognitive impairment in DLB, occurring within 1 year of parkinsonism onset.

18
Q

What type of hallucinations is most common in DLB?

A

Well-formed visual hallucinations.

19
Q

Which neurotransmitter system is primarily affected in DLB?

A

Cholinergic system, leading to cognitive dysfunction.

20
Q

What is the role of imaging in diagnosing DLB?

A

SPECT or PET showing reduced dopamine transporter uptake in the basal ganglia.

21
Q

Name a supportive therapy used in MSA for orthostatic hypotension.

A

Fludrocortisone or midodrine.

22
Q

Which non-motor symptom management is crucial in PSP and MSA?

A

Speech therapy and supportive care for swallowing difficulties.

23
Q

What are the primary glomerular causes of haematuria?

A

IgA nephropathy, post-streptococcal glomerulonephritis, membranoproliferative glomerulonephritis

These conditions are classified as intrinsic renal pathology.

24
Q

Name a secondary glomerular cause of haematuria.

A

Systemic lupus erythematosus (SLE)

Other examples include small-vessel vasculitis and Henoch-Schönlein purpura.

25
What is Alport syndrome?
A hereditary/structural defect causing haematuria ## Footnote It is characterized by progressive kidney disease and hearing loss.
26
List two infectious causes of haematuria.
* Pyelonephritis * Cystitis ## Footnote Urethritis due to sexually transmitted infections is also a non-glomerular infectious cause.
27
Identify a neoplastic cause of haematuria.
Renal cell carcinoma ## Footnote Other examples include bladder cancer, ureteric tumour, and prostate cancer.
28
What structural/obstructive causes can lead to haematuria?
* Renal/ureteric stones * Polycystic kidney disease * Vascular malformations ## Footnote These conditions can create physical barriers affecting urine flow.
29
What is benign prostatic hyperplasia (BPH) and its relevance to haematuria?
A common cause of haematuria in elderly males due to vascular congestion and irritation ## Footnote BPH can lead to urinary symptoms and complications.
30
How can trauma cause haematuria?
Blunt or penetrating trauma to kidneys, ureters, bladder, or urethra ## Footnote Iatrogenic causes like catheterization or biopsy can also result in haematuria.
31
What role does coagulopathy play in haematuria?
Anticoagulant therapy and platelet disorders can lead to increased bleeding ## Footnote Examples include warfarin, heparin, ITP, and DIC.
32
What is exercise-induced haematuria?
Haematuria occurring after vigorous physical activity ## Footnote It is often benign but can be a sign of underlying issues.
33
What is pseudohaematuria?
False positive dipstick results for blood in urine ## Footnote Causes include haemoglobinuria, myoglobinuria, and pigmenturia.
34
Fill in the blank: The '4 I's Rule' for non-glomerular causes includes Infections, Injury, Impairment, and _______.
Intrinsic pathology ## Footnote This rule helps in recalling the categories of non-glomerular causes of haematuria.
35
What does the 'Primary, Secondary, Hereditary' classification refer to?
It refers to the categorization of glomerular causes of haematuria ## Footnote Each category encompasses different underlying conditions.