MCQ Flashcards
Spontaneous coronary dissection
Rare
80% women
Late preganancy, post-partum, perimenopausal often (1/3)
Healthy individuals
Cardiac sarcoidosis
May manifest as bradycardia secondary to AV block
Arrythmias may cause sudden death
5-10% symptomatic, with findings in 25%
May cause ventrircular aneurysms
Restrictive cardiomyopathy
Caval filter
3rd lumbar vertebra level, infrarenal
Intra-aortic balloon pump
Should be located at proximal descending aorta, just beyond origin of left subclavian.
Most common cause of bronchial artery hypertrophy leading to massive haemoptysis
Bronchiectasis
Wells score
Clinical signs and symptoms Alternative diagnosis Tachycardia Immobilisation or surgery Previous DVT or PE Haemoptysis Malignancy
HOCM
The majority of patient show asymmetric septal hypertrophy
Associated with systolic anterior motion of mitral valve, which can cause LVOT obstruction
Tends to cause MR as above, with left atrial enlargementff
Pancoast tumour
Syndrome - mass, Horners, shoulder pain, radicular arm pain.
Left atrial enlargement associations
Can cause left lower lobe collapse
Takayasu arteritis
Most common aortic segment involved is abdominal aorta
Cardiac myxoma
Most common benign cardiac mass in adults
Infrequent in children - rhabdomyomas instead
Low T1, variable T2 (some high - myxo)
Heterogeneous enhancement
Arrythmias, dyspnoea, murmur
Solitary in left atrium most common, attached to septum at fossa ovale
Associated with Carneys complex MEN
Bronchiolitis obliterans
Bilateral peripheral patchy opacities without zonal distribution
Mosaic perfusion
May have decreased vascular marking and hyperinflation
May be seen in chronic rejection, and graft-v-host disease
Also post infectious. E.g. in CF, or in Swyer-James
Air trapping
Most commonly superior segments of lower lobes, or anterior middle lobe or lingula, on expiratory CT
AIP
AKA Hamman-Rich
Previously healthy subjects
Diffuse alveolar damage
Infection v lymphoma v kaposi
Thalium and gallium scanning
Infection (e.g. PCP) and lymphoma are gallium positive (kaposi not)
Lymphoma and kaposi sarcoma thalium positive
Thalium scanning performed prior to gallium
IPF
Can be diagnosed with ATS major and minor criteria in absence of surgical biopsy
Minor: Age > 50 plus symptoms and signs - crackling
Major: absence of alternative on lavage or transbronchial biopsy, exclusion of other causes, UIP on CT
Hodgkin lymphoma, lung
10%
Nodules or masses, single or multiple, may cavitate, discrete or indistinct
Best place for PICC
Basilic vein
Basilic vein drains ulnar hand. Joins with brachial veins to form axillary vein. Cephalic then joints the axillary vein.
Rebound thymic hyperplasia
May occur post chemo
Organising pneumonia
Peripheral, lower zone predominant chronic consolidation
Adenopathy in 27%
Effusion in 30%
Atol sign
Non or ex-smokers
Idiopathic, collagen vascular disease, drugs
CPAM
25% of congenital lung disease
95% of cystic
1 - 50%
2 - 40%
3 - 10%
Type 2 associated with renal agenesis / dysgenesis, pulmonary sequestration, congenital cardiac disease
No lobar prediliction of sex predominance
Bronchopleural fistula risk factors post pneumonectomy
Pre-op radiation Pre-op uncontrolled infection Post-op PPV Faulty closure of stump Right pneumonectomy - shorter bronchus
Pulmonary infarct stats
Only in 10-15% of emboli
Lower lobe 75%
Haemorrhage can occur without infarction
Extralobar sequestration M:F
4:1
TB resolution
2/3 no sequelae
Ghon focus is calcified granuloma in lungs
Ghon complex is above plus lymph node
Ranke complex is above but calcified lymph node
Calcified lung disease is inactive
Or no change for 6 months
ARDS
10% have chronic changes in non-dependent lung
Mild chronic fibrosis
PIOPED
High probability scan plus high probability clinically is PE confirmed
Low probability or normal scan + low clinical probability, PE excluded
Otherwise uncertain, and lower limb US or angiography of pulmonary arteries recommended
High probability - 2 or more large mismatched defects
Intermediate - rest
Low - non segmental or subsegmental defects, or matched defects with normal radiograph, or substantially larger radiograph abnormality than perfusion decect
Normal - no defect
Rasmussen aneurysm
Complication of TB
Pulmonary artery aneurysm adjacent to a tuberulous cavit
Lateral CXR
Posterior wall bronchus intermedius / posterior stem line <3mm
RUL bronchus above LUL bronchus
Left artery superoanterior to bronchus
Right artery anterior to bronchus
The left pulmonary artery marks superior and posterior contour of hilar complex
Earliest asbestos related disease
Pleural effusions, 8-10years post exposure
Aortic dissection
Anterior and right lateral wall, just distal to valve, in 65%
Transverse or oblique tears, 1-5cm in length with jagged edges
Intimal flap detectable in 85-90%
Occlusion of coronary arteries in 8%
De Bakey - 1 and 2 A, 3 B
1 ascending and descending, 2 ascending only
HTN almost invariably Structural abnormalities - bicuspid valve, coarctation, connective tissue e.g. Marfans Turners Pregnancy Balloon pumps
Libman-Sachs endocarditis
Non-infective, SLE endocarditis
Mitral valve (or tricuspid)
Intense valvulitis and fibrinoid necrosis
Sterile, granular pink vegetations
SLE vasculitis can cause pancreatitis, peritonitis, colitis
Antiphospholipid syndrome
34% have SLE
Thrombotyic disease, thrombocytopenia, miscarriages
RI
PSV - EDV / PSV
PI
PSV - EDV / mean V
Kasabach-Merritt
Haemangioma causing thrombocytopaenia
Endoleak treatment
1 - ASAP repair
2 - If have not stopped spontaneously in 1 month, thrombose
3 - repair with an additional graft
Renal artery stenosis
Acceleration time > 0.07 in intrarenal arteries (tardus)
Renal aortic ratio >3.5 –> 60% stenosis
RI > 0.7
PSV > 180
Carotid stenosis
> 115 <230 50-69 (ratio 2-4)
>240 >69 (Ratio >4)
Renal artery aneurysm
Saccular, non-calcified, occur at bifurcation
FMD common cause
Female prediliction
PAN, IVDU, SLE, RCC, AML, metastatic arterial myxoma, transplant rejection
2/3 extrarenal, 1/3intra
FMD
Bilateral renal arteries in 50%
Responds well to angioplasty
Restenosis 12-25% over 2 years, but HTN doesn’t necessarily recur
Cardiac MR
Spin echo - black blood
Gradient echo - bright blood
Gradient echo are flow sensitive
Retrospective gating better for diastole
Femoral venous catheter
Higher incidence of infection, limit mobility, risk iliac vein stenosis
Intended use <30 days
Fibrin sheath, tunneled line
Treat with thrombolysis
Dural venous sinus thrombosis
Higher risk in puerperium than pregnancy
AV fistula stenosis treatment
Angioplasty
Surgery if recurrent or in lower forearm
Idiopathic inflammatory AAA
5-25%
Fusiform often
Delayed enhancement of soft tissue component
Dense perianeursymal fibrosis
Mycotic aneurysm
2.5% AAA
Saccular
Perianeurysmal gas, stranding, psoas involvement
Staph, salmonella most common
Azygous IVC
Associated with polysplenia, dextrocardia
Polyarteritis nodosa
Kidneys 70-80%
Multiple small aneurysms
CNS 10%
Most common systemic vasculitis to involve CNS
Transmural necrotising vasulitis, fibrinoid necrosis
pANCA positive (correlates with disease activity)
Good response to treatment
Associated with HBV and HIV antigenaemia
Males, 5th-7th decade
Churg-Strauss
Asthma, hypereosinophilia, systemic small vessel granulomatous necrotising vasculitis
May be histo identical to PAN
pANCA in 20-70% (Wegeners is cANCA)
Renal disease infrequent - heart lungs skin spleen
Coronary arteritis and myocarditis
Endocardial fibroelastosis
Enlarged left heart and pulmonary venous congestion
Restrictive cardiomyopathy
Fatal by 2
Endocardial deposition of colagen and elastic tissue