Clinical Consultation Flashcards

1
Q

Common scenario leads which should make you think of Marfan’s?

A

Chest pain
SOB
Change in vision
Joint pains

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2
Q

Questions to think about when considering Marfan’s as a differential?

A

Chest pain
SOB
Fever, night sweats, weight loss, blood in urine, rash
Change to vision
Dislocated joints
Lumps in neck

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3
Q

Things you might find on inspection in a patient with Marfan’s?

A

Tall
Arachnodactyly
Kyphoscoliosis ± pectus excavatum/carinatum
Long arms vs torso
Thumb in fist - come out other side
Bend thumb against hand
Look quickly side to side - upwards lens dislocation - iris vibrate
Blue sclera
High arched palate
Mucosal neuroma’s
Pes planus - flat feet

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4
Q

What systems would you examine in a patient with suspected Marfan’s and what may you find?

A

CVS
- Collapsing pulse
- Prominent neck pulsations
- BP
- Feel for apex beat
- Early diastolic murmur - AR
- Ejection click and late systolic murmur - MV prolapse

Resp
- Check tracheal position
- Percuss/auscultate for pneumothorax
- Inspect axilla for chest drain scars

Abdo
- look for hernia

Legs
- Dural Ectasia - test for weakness

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5
Q

What are some differentials for Marfan’s syndrome

A

Homocysteinuria - no cardiac. cognitive impairment. downwards lens dislocation. Recurrent VTE

MEN2b - marfanoid, mucosal neuromas, medullary thyroid ca, phaeochromocytoma - no affect on heart or eyes

MASS phenotype - MV prolapse, non-progressive aortic root dilatation, skin and skeletal manifestations

Ehlers Danlos - increased hyper mobility, skin fragility,

Pseudoxanthoma elasticum - AR, plucked chicken skin, angoid streaks on fundoscopy, blue sclera, screen for HTN and accelerated atherosclerosis

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6
Q

What investigations would you do in a patient with suspected Marfan’s?

A

Bedside
- ECG
- BP - wide pulse pressure
- Temp, fundoscopy, urine dip - ?IE

Bloods depend on presentation - r/o infections/PE

Imaging
- CXR - cardiomegaly, pulmonary oedema, wide mediastinum
- Echo - annually - monitor aortic root diameter and for AR

Special
- Can do genetic tests but diagnosis usually on Ghent criteria

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7
Q

How is Marfan’s managed?

A

Counsel patient - familial component, risk of pneumothorax and heart disease

Information leaflets and support groups

Screen family members

MDT - PT/OT, Cardiologist, genetic counsellors, resp, rheum, ortho, ophthalmologist, GP

Medical
- Manage co-morbidities
- Beta blocker and ACEi to slow AR dilation

Surgical
- AV replacement
- Aortic root repair - if >5cm

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8
Q

What are some causes of a high arched palate?

A

Marfan’s
Turner’s syndrome
Homocysteinuria
Noonan’s syndrome
Freidrichs ataxia

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9
Q

What is the genetic defect in Marfan’s and how is it inherited?

A

Autosomal Dominant

FNB1 gene on chromosome 15 encoding Fibrillin-1 - complete penetrance but variable phenotype

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10
Q

What can cause a blue sclera?

A

Marfan’s
Ehlers Danlos
Pseudoxanthoma elasticum
Osteogenesis Imperfecta
Alkapturia - due to deposition. Others due to thin sclera

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11
Q

What is the cause of MEN2b

A

Spontaneous or autosomal dominant defect of RET proto-oncogene

Treated with thyroidectomy and close monitoring for phaeochromocytoma

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12
Q

What makes up the Revised Ghent Criteria?

A

Family hx of marfans
Aortic root dilatation or dissection
FNB1 mutation
Systemic score

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13
Q

What are features of the systemic score for Marfan’s?

A

Wrist sign
Thumb sign
Pectus Excavatum/Carinatum
Pes planus
Pneumothorax
Dural ectasia
Protrusion acetabula
Increased arm span:height ratio
reduced upper segment/lower segment ratio,
scoliosis or thoracolumbar kyphosis,
reduced elbow extension,
facial features (dolichocephaly, enophthalmos, downslanting palpebral fissures, malar hypoplasia, retrognathia),
skin striae,
myopia,
mitral valve prolapse

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14
Q

What are the indications for aortic root replacement in a patient with Marfan’s?

A
  • Dilation >50mm
  • Dilation >45mm + family hx of dissection
  • Increasing by >3mm per year
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15
Q

What are the cardinal features of systemic sclerosis?

A

CREST syndrome

Calcinosis - usually found on fingertips
Raynauds
Oesophageal dysmotility
Sclerodactyly
Telangiectasia

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16
Q

Questions to ask regarding Raynaud’s?

A

Do hands change colour in the cold?

3 stages? - white –> blue –> red

How badly is it affected
Time to normalise
Develop ulcers in hands?
Family Hx

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17
Q

What skin changes may you see in systemic sclerosis?

A

Tight shiny thick skin
Telangiectasia
Bruising
Hypo/hyperpigmentation
Swollen extremities - non pitting
Lose fat pads in hands

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18
Q

What face changes may you see in systemic sclerosis?

A

Small mouth - microstomia
Peri-oral furrows
Pinched nose

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19
Q

Features of respiratory exam in suspected systemic sclerosis?

A

Fine end inspiratory crackle at bases
Don’t change with coughing

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20
Q

Features on CVS examination in suspected systemic sclerosis?

A

Raised JVP
Left parasternal heave
Palpable P2
Loud P2
Peripheral oedema

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21
Q

What is systemic sclerosis?

A

Autoimmune, inflammatory, fibrotic connective tissue disease

Unknown aetiology

Affect skin and internal organs

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22
Q

What are the patterns of disease in systemic sclerosis?

A

Limited cutaneous (CREST)

Diffuse cutaneous
- CREST
- CVS - HTN + coronary heart disease
- Lung fibrosis and Pulm. HTN
- Renal - glomerulonephritis and scleroderma renal crisis

23
Q

What investigations would you request for suspected systemic sclerosis?

A

Bedside:
- Observations - O2 sats + BP
- Urine dip - renal crisis
- ECG - R heart strain - ST depression and TWI V1-3

Bloods
- FBC - anaemia
- UE - renal crisis
- ANA - positive in most patients. Non specific
- anti scl-70 and topoisomerase - diffuse
- anti-centromere - limited

Imaging
- CXR
- HRCT
- Echo

Special
- Capillaroscopy - abnormal nail fold capillaries
- Thermography with cold challenge
- Spirometry
- Endoscopy - oesophagitis

24
Q

How is systemic sclerosis managed?

A

Non-Pharmacological
- Education
- Hand warmers, avoid cold
- PT/OT, SALT
- Smoking cessation
- MDT - Rheum, renal, cardio, resp, gastro

Medical
- Prokinetics
- Antacids, PPI
- Nifedipine - Raynauds
- Sildenafil, iloprost, bosentan - Pulm HTN
- Anticoagulation
- Diuretics
- O2
- Methotrexate, mycophenolate, cyclophosphamide

Surgical
- Lung transplant
- Contracture release
- Excision of calcinosis

25
Q

What are some features of lupus?

A

Joint pain and swelling - Jaccoud’s arthropathy - morning stiffness, polyarticular symmetrical

Systemic - Fever, weight loss, myalgia, malaise, Raynaud’s

Skin - Photosensitive molar rash, discoid rash

Neuro - headaches, cognitive impairment, seizures, psychosis/delirium, peripheral neuropathy

Pulmonary - fibrosis, vasculitis, pleural effusion

Cardio - pericarditis, pericardial effusion, myocarditis, valvular disease, HTN

Renal - lupus nephritis - 1/3 of pateints

Gastro - abdominal pain, nausea, vomiting, hepatomegaly, ulcers

Haem - anaemia, leukopaenia, antiphospholipid syndrome

Osteopaenia/Osteoporosis

26
Q

What are some examination features indicative of lupus?

A

Malar rash
Nail fold vasculitis
Photosensitivity
Livedo reticularis
Jaccoud’s arthropathy
Mouth ulcers
Pale palmar creases
Pericardial rub
Evidence of Pulm. HTN - raised JVP, P2
Peripheral oedema
Pleural rub
Stony dull percussion
Reduced air entry
Organomegaly
Renal transplant

27
Q

What are some differentials for lupus?

A

Drug induced lupus

Systemic sclerosis

Dermatomyositis

Mixed connective tissue disease

Stills disease

Sjogrens

Pulmonary renal syndrome - ANCA/Goodpastures

28
Q

How would you investigate lupus?

A

Bedside:
- Urine dip - protein, blood, pregnancy test
- BP
- ECG - pericarditis/R heart strain
- BILAG score

Bloods:
- FBC, U&E, LFT, CRP
- ANA - sensitive not specific
- Anti Ro, La, Smith
- Anti ds-DNA - specific
- Complement - low in active disease
- Anti-histone - drug induced
- Anticardiolipin/lupus anticoagulant- antiphospholipid syndrome
- Positive direct Coombs test in absence of haemolytic anaemia

Imaging
- Joint X-Rays - non erosive
- CXR - effusions, nodules, infiltrates
- Echo - pericardial effusion/sterile valve vegetations

Special
- Anti C1q - raised in renal disease
- Urine PCR
- Urine for red cell casts
- Skin biopsy
- Renal biopsy
Others - DEXA, EMG, Abdo USS/OGD, cMRI, Cranial imaging

29
Q

What medications are associated with drug induced lupus?

A

Hydralazine
Procainamide
Isoniazid

30
Q

How is lupus diagnosed?

A

4/17 criteria. 1 clinical + 1 immunological

Biopsy proven lupus nephritis + ANA/anti dsDNA

31
Q

What are some clinical criteria for lupus?

A

Acute/Chronic cutaneous features
Oral/nasal ulcers
Non scarring alopecia
Synovitis
Serositis
Renal
Neuro features
Haemolytic anaemia
WCC <4 or Lymph <1
Plt <100

32
Q

What are anti ro/la associated with?

A

Neonatal lupus
Heart block

33
Q

What is Anti RNP associated with?

A

Mixed connective tissue disease

34
Q

When should you suspect antiphospholipid syndrome?

A

Arterial thrombosis <50yo
Unprovoked VTE <50yo
Recurrent thrombosis
Arterial and venous events
Unusual sites - renal, liver, cerebral sinus, mesenteric, vena cava, retina
Obstetric - recurrent miscarriage, severe pre-eclampsia

35
Q

What are features are associated with antiphospholipid syndrome?

A

Postive antibodies
Low platelets
Recurrent miscarriage
Livedo reticularis

36
Q

What blood test findings would you see in an acute lupus flare?

A

Low complement
Low lymphocytes
Low/normal CRP
Raised ESR
Anaemia
Low Plt
Raised dsDNA

37
Q

What are the main causes of morbidity/mortality in Lupus?

A

Infections
Atherosclerosis
Osteoporosis
Malignancy - lymphoma, lung, cervical

38
Q

How is lupus managed?

A

Conservative - sunscreen, pregnancy advice, support groups, PT, OT, smoking cessation

Medical
- Analgesia
- Mild/Mod - Pred, hydroxychloroquine, azathioprine, MTX
- Severe - I V Methylpred, cyclophosphamide, MMF, Rituximab/Belimumab
- Optimise HTN, diabetes, hypercholesterolaemia

Surgical - renal transplant

39
Q

How does drug induced lupus vary from SLE?

A

Equal sex distribution - SLE = F>M
No renal involvement
Antihistone
Normal complement

40
Q

What are some complications of hydroxychloroquine

A

Retinopathy - rate but seen in those at high doses >5 years

41
Q

Causes of anaemia in SLE?

A

Chronic disease
NSAID associated gatritis
Myelosuppression
Folate deficiency - MTX
B12 deficiency
Autoimmune haemolytic anaemia
Hypersplenism

42
Q

What is mixed connective tissue disease?

A

Overlapping features of SLE, scleroderma, myositis, Raynauds

ANA positive
Positive Anti U1 RNP
Elevated inflammatory markers and CK

43
Q

What are the types of neurofibromatosis?

A

Autosomal dominant condition

Type 1 - affect chromosome 17 - neurofibromin
- Cafe au lait spots
- axillary/groin freckles
- peripheral neurofibromas
- Lisch nodules
- Scoliosis

Type 2 - chromosome 22
- Bilateral acoustic neuromas.
- Meningiomas
- Schwannomas
Much more rare

44
Q

Scenarios you should consider neurofibromatosis?

A

Seizures
Headaches
Rashes
Visual disturbances

45
Q

Questions to ask in a neurofibromatosis history?

A

Headache, visual disturbance or personality changes - optic glioma/meningioma

Seizures - epilepsy

BP - HTN secondary to RAS, phaeochromocytoma or co-arctation

Palpitations, anxiety, sweating, tremor - phaeo

Hearing - acoustic neuromas

School/college/uni - reduced IQ

Family history

Skin-skin discolouration, lumps etc.

Abdo pain, bloating, dyspepsia - GI carcinoid, obstruction, bleeding

Breathing - lung cysts/fibrosis

46
Q

Examination features in neurofibromatosis?

A

Skin and armpits - assess for neurofibromas, cafe au last spots, axillary freckles

Back - kyphosis/scoliosis

Neuro
- CN 5-8
- Cerebellar
- Pronator drift

Eyes - linch nodules - visual acuity, fundoscopy (if time), visual fields, pupils, eye movements

CVS/Resp/Abdo
- murmur of co-arctation - ESM, back L shoulder blade
- Lungs - creps
- Abdo - freckles, renal bruits

Offer to check BP
- renal artery stenosis, Phaeo, co-arctation

Order:
Hands –> pronator drift/rebound, intention tremor, past pointing –> eyes –> CN 5-8 –> look at armpits –> CVS/resp/abdo –> check shape of spine/look for neurofibromas

47
Q

Differentials for neurofibromatosis?

A

Decrums disease - multiple lipomas - skin can be mobilised seperately from lipoma

Tuberous Sclerosus
- Adenoma sebacaeum
- Subungal fibroma
- Shagreen patch
- Ash leaf macules

48
Q

How would you investigate neurofibromatosis?

A

Bedside
- Blood pressure

Imaging
- MRI head - optic nerve glioma
- CXR/CT chest - fibrosis, cysts
- Abdo US + doppler - renal artery stenosis

Special
- Slit lamp - lisch nodeules
- Urinary metanephrines
- Skin biopsy - exclude sarcoma
- Genetic testing

49
Q

How is neurofibromatosis managed?

A

MDT - geneticist, neurologist, plastics, orthographic, ophthalmology

Non-pharmacological
- Education
- Family screening
- Genetic counselling
- Annual BP, eye, bone and skin check

Medical
- Anti-epileptics
- Antihypertensives - alpha then beta for phaeo

Surgical
- Remove lesions - bothersome, compressive, neoplastic

50
Q

What is a plexiform neurofibroma?

A

Larger neurofibroma which can grow to considerable size and cause significant distortion

Risk of neoplastic transformation with these.

51
Q

Which syndromes have neurocutaneous features?

A

Neurofibromatosis
Tuberous sclerosis
Von Hippel Lindau
Ataxic telangiectasia
Sturge Weber Syndrome

52
Q

What hereditary conditions are associated with phaeochromocytoma?

A

Neurofibromatosis
Von Hippel Lindau
MEN 2a and 2b

53
Q

What are the features of von hippel lindau?

A

Cysts everywhere

Retinal and Cerebellar haemangiomas
Renal cysts
Phaeochromocytoma
Epididymal, pancreatic and hepatic cysts

54
Q

Types of MEN

A

MEN1 - 3P’s - present with hypercalcaemia
- Parathyroid - hyperparathyroidism
- Pituitary
- Pancreas - gastrinoma

MEN2a - 2P’s
- Phaeochromocytoma
- Parathyroid
(also medullary thyroid Ca)

MEN2b 1P
- Phaeochromocytoma
- Medullary thyroid Ca
- Neuromas
- Intestinal polyps
- Marfanoid body habitus