Musc Flashcards
(290 cards)
What is amyloidosis?
Deposits of amyloid, localised to a tissue or part of a systemic process. Results in organ dysfunction
What are the SS of amyloidosis?
Fatigue, WL, paraesthesias, dyspnoea on exertion, cramps, claudications, Nausea, orthostatic hypotension, submandibular salivary gland enlargement, diffuse weakness, sensory neuropathy
What are the investigations for amyloid?
FBC normal
Serum immunofixation/urine - presence of monoclonal protein
BM biopsy - clonal plasma cells
Immunoglobulin free light chain assay - abnormal kappa to lambda ratio
What is dermatmyositis? ITS IN THE NAME
An idiopathic myopathy characterised by the presence of cutaneous lesions: a heliotrope rash and gottron’s papules.
What are the S+S of dermatomyositis?
Heliotrope rash = helio on the eye - rash around the eyes
Gottrons papules = extensor rash
Maculoviolacious rashes - symmetrical and odd distribution ie V on neck, / lateral thigh etc
Mechanics hands - nail thickening, dry and scaly
WL, fever, proximal myopathy, dysphagia, palpitations pruritus, photosensitivity
What are the investigations which confirm dermatomyositis?
CLINICAL for the rashes
Skin biopsy - lymphocyte infiltration and neurotic keratinocytes
ANA - +ve
Serum CK and aldolase - inc
Muscle biopsy - atrophy
EMG - abnormal spontaneous and voluntary activity
What is Antiphospholipid syndrome?
Presence of antiphospholipid antibodies that result in increased thrombosis and pregnancy related morbidity. Increased thrombosis causes thrombocytopenia.
What are the S+S of antiphospholipid syndrome?
Any signs of DVT/PE/ischaemic stroke
Also: purpura/petechaie, inc epistaxis (from thrombocytopenia)
New cardiac murmurs - vegetations
Oedema and proteinuria - nephropathy
What investigations confirm antiphospholipid syndrome?
Anticardiolipin, antiB glycoprotein, lupus anticoagulant - all +ve
40% of SLE get this so SLE abs - ANA, DsDNA,
Creatinine and urea - inc due to nephropathy
FBC - thrombocytopenia
Thrombophilia screen NEG
Inv for DVT/PE/vegetations
What is SLE?
A chronic multisystemic disorder affecting women during their reproductive years, characterised by ANAs.
What are the RFs for SLE?
15-45, reproductive age, black/asian= worse, drugs ie phenytoin/isoniazid
What are the S+S for SLE?
DOPAMINE RASH D = discoid rash O = oral ulcers P = photosensitivity A = arthrlagias/itis M - MALAR rash I = immunological DSDNA, smiths antigen, anti RO/LA N = neurological - seizures, psychosis, cog def E = ESR R = renal dysf A = ANA S = serositis = pleurisy/pericarditis H - haematological - leukopenia, anaemia, thrombocytopenia
What investigations confirm SLE?
FBC - anaemia, thrombocytopenia, leukopenia
ESR + CRP - UP
ANA, dsdna, anti ro/la, smiths antigen - +ve
U+E - in U+C
Urinalysis - haematuria, proteinuria, cell casts
CxR - cardiomegaly, pleural eff
What is behcets syndrome? Remember ORAL UPSET
Behcets = chronic systemic vasculitis common in turkish people that causes skin, eye, GI, CNS manifestations.
Strangely wanes with time, no a/bs.
What are the S+S for behcets?
ORAL UPSET
Occlusive periphlebitis Retinitis Anterior uveitis Lots of CNS signs Ulcers - aphthous, genital, mucosal Pustules after trauma Scratching leaves tracks - dermatographia Erythema nodosum Thrombophlebitis
Haemorrhages - haemoptysis,
CNS - IMPAIRED SPEECH / BALANCE /. MOVEMENT
What investigations confirm behcets?
PATHERGY TESTING - pustule formation
Antibody negative - therefore no RF, ana, Anticytoplasmic abs
HLAb5(1) - +ve
MRI with contrast - CNS involvement - white matter changes in midbrain
Colonoscopy - aphthous ulcers
What is carpal tunnel syndrome?
A collection of signs and symptoms that results from compression of the median nerve in the carpal tunnel.
What are the RFs for carpal?
Preg, acromegaly, occupation, cigarettes, DM, inc BI, mobility aids, RA
What are the SS of carpal?
Numbness of hands ONLY on palmar aspect thumb-4th
Worse at night (waking up), clumsiness, stiff fingers, thenar wasting, arm pain, gradual onset, normal reflexes
Tapping on median nerve causes symptoms
45second palmar flex recreates symptoms
What are the investigations for carpal tunnel?
EMG - decreased median nerve conduction velocity
USS - space occupying lesion
Cervical spondylosis, what is it?
Osteoarthritis of the spine, including spontaneous degeneration of the facets/dis with osteophyte formation.
What are the RFs?
Age >40, H+N trauma, prev surg, sports.
What are the S+S of cervical spondylosis?
Spontaneous onset neck pain
Can cause cervical muscle spasm ->radiated pain to occipital
Radiculopathy - pain multiple roots - past shoulder
Myelopathy, weakness, numbness
Reflexes - UP in myelopathy (UP IN UP MOTOR), down in radiculopathy
Profuse myelopathy can cause UMN signs in legs with gait ataxia
Cervical spondylosis investigations?
MRI/X-RAY/CT cervical - degeneration of facets, disc, sc/nerve compression, osetophyte
EMG - dec in radiculopathy
CT myelogram - allows better disc visualisation