Rheumatology Flashcards
(41 cards)
Adhesive capsulitis frozen shoulder
what rotation is affected
external rotation is affected more than internal rotation or abduction
both active and passive movement is affected
ANCA associated vasculitis
granulomatosis with polyangiitis
eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome)
microscopic polyangiitis
Other features - the ‘A’s
Ankylosings sponditlitis
Apical fibrosis
Anterior uveitis
Aortic regurgitation
Achilles tendonitis
AV node block
Amyloidosis
and cauda equina syndrome
peripheral arthritis (25%, more common if female)
Ankylosings sponditlitis investigation
Plain x-ray of the sacroiliac joints is the most useful investigation in establishing the diagnosis.
Plain x-ray of the sacroiliac joints is the most useful investigation in establishing the diagnosis.
3S seen on scan
sacroiliitis: subchondral erosions, sclerosis
squaring of lumbar vertebrae
‘bamboo spine’ (late & uncommon)
syndesmophytes: due to ossification of outer fibers of annulus fibrosus
chest x-ray: apical fibrosis
Avascular necrosis of the hip investigation of choice
MRI is the investigation of choice
it is more sensitive than radionuclide bone scanning
compression of the ulnar nerve as it passes through the cubital tunnel. tingling and numbness of the 4th and 5th finger which starts off intermittent and then becomes constant.
Cubital tunnel syndrome
pain on the radial side of the wrist
tenderness over the radial styloid process
abduction of the thumb against resistance is painful
De Quervain’s tenosynovitis
De Quervain’s tenosynovitis effects
occurs when he extensor pollicis brevis and abductor pollicis longus tendons is inflamed.
dirutics that cause gout
diuretics: thiazides, furosemide
drugs causing gout other than dirutics
ciclosporin
alcohol
cytotoxic agents
pyrazinamide
aspirin: it was previously thought that only high-dose aspirin could precipitate gout.
gout synovial fluid analysis
needle shaped negatively birefringent monosodium urate crystals under polarised light
Hydroxychloroquine Adverse effect
bull’s eye retinopathy - may result in severe and permanent visual loss
Marfan’s syndrome
caused by defect in
FBN1 gene on chromosome 15 that codes for the protein fibrillin-
Methotrexate adverse effects
mucositis
myelosuppression
pneumonitis
the most common pulmonary manifestation
similar disease pattern to hypersensitivity pneumonitis secondary to inhaled organic antigens
typically develops within a year of starting treatment, either acutely or subacutely
presents with non-productive cough, dyspnoea, malaise, fever
pulmonary fibrosis
liver fibrosis
OA Xray
X-ray: radiologically there are osteophytes and joint space narrowing. Often signs may be visible on X-ray, before symptoms develop
presents in childhood
fractures following minor trauma
blue sclera
deafness secondary to otosclerosis
dental imperfections are common
Osteogenesis imperfecta
adjusted calcium, phosphate, parathyroid hormone and ALP results are usually normal in osteogenesis imperfecta
most common organism in Osteomyelitis
Staph. aureus is the most common cause except in patients with sickle-cell anaemia where Salmonella species predominate
dexa scan
T score
> -1.0 = normal
-1.0 to -2.5 = osteopaenia
< -2.5 = osteoporosis
Greater than 0 Reassure
Between 0 and -1.5 Repeat bone density scan in 1-3 years
Less than -1.5 Offer bone protection
joint aspiration: weakly-positively birefringent rhomboid-shaped crystals
Pseudogout
retinal angioid streaks
‘plucked chicken skin’ appearance - small yellow papules on the neck, antecubital fossa and axillae
cardiac: mitral valve prolapse, increased risk of ischaemic heart disease
gastrointestinal haemorrhage
Pseudoxanthoma elasticum
RA Preganncy safe drugs
sulfasalazine and hydroxychloroquine are considered safe in pregnancy
late features of rheumatoid arthritis and unlikely to be present in a recently diagnosed patient.
Swan neck and boutonniere deformities
Rheumatoid arthritis: prognostic features
Poor prognostic features
rheumatoid factor positive
anti-CCP antibodies
poor functional status at presentation
X-ray: early erosions (e.g. after < 2 years)
extra articular features e.g. nodules
HLA DR4
insidious onset