Rheum Flashcards
(208 cards)
Slow onset progressive ‘deep, boring’ bone pain.
Xray shoes lytic lesion with sclerotic edges
Brodies abscess
Acute osteomyelitis most common bug? What consider if neonates? if sickle cell? IVDU?
S aureus - most common for all
Group A b haemolytic strep / H inflenzae in neonates
Salmonella ssp in sickle cell
IVDU - consider Pseudomonas
Haematogenous osteomyelitis is most common in kids. What part of bone is affected?
Metaphysis
[bone cant swell and puss collects under periosteum -> sore]
Early morning stiffness of shoulders / neck. Mild anaemia, mild raised inflam? Key condition this is assoc with?
Polymyalgia
Giant cell arteritis (25% get)
Arthritis. Back predominant + uveitis in 15-40 year old =?
What else is common assoc? Gene? Most common heart issue?
Ankylosing spond
IBD
HLA B27 in 90%
Aortic incompetence
[also get arrhythmias etc…]
Ankylosing spond XR of spine shows? Pelvis?
Bamboo / tramtrack appearance
Fusion of sacroiliac joints
TNFa - key endocrine issue
Raised levels increase insulin resistance
Fever, malaise. The short duration of multiple asymmetric arthritis. conjunctivitis. Crusted skin lesion - where is this common? What positive
Reactive arthritis
[Usually follows infection - may not be such an easy giveaway in Q]
Skin lesion on palms / soles (brown in colour)
HLA-B27
Which arthritis have positive HLA B27
PEAR
Psoriatic
Enteric
Ankylosing spond
Reactive
Which arthritis has positive HLA B27
PEAR
Psoriatic
Enteric
Ankylosing spond
Reactive
Reactive arthritis. Often cause following enteric infection Eg salmonella, shigella …. What is the usual cause if urogenital? If Respiratory ?
Uro - chlamydia trachomatis
Respiratory - group a strep / chlamydia pneumonia
Sensitive and specific for Rheum A? Gene?
Anti ccp
HLA-DR4
DMARD of choice in RA? Other key Rx ?
Methotrexate (Usually with a course of steroids as DMRDS can take a couple months to work)
STOP SMOKING
Differentiate gonococcal arthritis from reactive arthritis
Gonococcal - Migratory polyarthritis
-Tendosynovitis
-Rash not really on hands / feet and may pustulate. Bit more extensive too
Reactive - Usually affects less joints (max 4)
-Tendosynovitis rare
-Rash usually on palms / soles
Which condition has bouchard / heberdens nodes ?
Osteoarthritis
OA most common finding on XR>?
Joint space narrowing
(may see ostoeophytes)
[subchrondral thickening]
Pseudogout other name? Seen on xray
Pyrophosphate arthropathy
chondrocalcinosis (calcified cartilage in articular space)
Oral / genital ulcers.
Erythema nodosum
Anteror uveitis ?
Common test done?
Gene?
Bechets syndrome
[Recurrent oral ulcers is key]
Skin prick with sterile needle -> pustule within 48hrs
HLA-B51
Rx if isolated mild oral ulcers in bechets?
Topical steroids
eg. triamcinolone
Drug-induced lupus? Antibodies?
procainamide, isonazid, hydralazine, sulphasalazine, penicillamine , antiepileptics ….
Basically if its a weird drug it might have caused it.
often ANA positive / anti-histone positive
but anti-dsDNA negative
Rx is to sop drug obvs
Most common antibody in lupus ? Specific? Which should all lupus also be tested for?
ANA - not specific tho
Anti ds-DNA more specific
Anti-phospholipid
Which inflam condition may develop bakers cyst
Rheum A
Also gout / OA
What is osteomalacia? Who classically gets it in questions? On Xr?
Inadequate mineralisation of bone
Vit D deficiency
- Sometimes Malabsorption - Coeliac / Crohns
Areas of low density with sclerotic zones
What is pagets ? Usual bloods finding? Rx? Monitoring blood test?
Essentially rapid bone turnover ->Disorganised
-Bone increases in size but more brittle + prone to fracture
Raised ALP (normal Ca, PO4 and PTH)
Bisphosphonates
Monitor bone specific ALP