MSK Flashcards
(139 cards)
Bony outgrowth with cartilagenous cap
Knee
Osteochondroma
Autosomal dominant
Most common
Excise
Intramedullary, metaphyseal tumour
Lucent/sclerotic
Long and small tublar bones
Enchondroma
failure of ossification at growth plate
Curretage to treat
Solitary unicystic growth
long bones
Fractures can occur
Curretage and bone graft
Possible stabilisation
Lucent
Multiloculated cyst in medulla
Pain and fractures
Aneurysmal bone cyst
Curretage and cement
Pain and fracture
lung mets
soap bubble appearance
Giant cell tumour
Translocation of 1 + 2
Excise and bone cement
Joint replacement
Widened bone thin cortices
Stress fractures
‘Shepherds crook deformity’
Fibrous dysplasia
Fault in g protein signalling leading to immature bone
treat with bisphosphonates, fixation and remove it
Pain worse at night and reieved by NSAIDs
X ray with sclerotic halo
Osteoid osteoma
leave alone/ablate/ en bloc excision
Lytic lesion
History of subacute osteomyelitis
Brodies abscess
Lytic lesions
history of hyperparathyroidism
Brown tumours
Most common primary bone tumour
Osteosarcoma
Treat with chemotherapy
Herringbone pattern
Abnormal bone pathology
Young
Fibrosarcoma
Fever raised ESR Swelling Onion skin pattern Small blue round cell tumours
Ewings sarcoma
11:22 translocation on Ch22
Give chemo and raddiotherapy
what test shows multiple myeloma
Bence Jones
Trat with chemo
Where do bone mets go?
Prostate (blastic) Breast (mixed) Kidney (lytic) Thryoid (lytic) Lungs (lytic)
Sagging rope sign
History of clotting
AVN
Precollapse: Drill to get blood flowing
Collapse: Replacement
Distinguish osteoporosis, osteomalacia and pagets
OP: >2.5 decrease in bone density and normal biochemistry
OM: <2.5 decrease, pseudofractures, low Ca2+ and PO
P: Raised ALP, thickened bone cortices
overcontracted muscle
Anti K+ antibodies
Neuromyotonia
Anticonvulsants
Muscle weakness due to Ca2+ antibodies
LE myasthenic syndrome
Anticholinesterases and K blockers
Progressive eye and muscle weakness
Anticholinesterases
Immunosuppressants
Joint pain
DIP and PIP
<1hr + worsens activity
LOSS on X ray
OA Lifestyle NSAIDS IA steroids Joint replacement
Joint pain PIP and MCP C1 C2 involvement stiffness >1hr and eases on activity Anti CCP and RF
RA Investigate with MRI 1. MTX + steroid 2. + SFZ/HCQ 3. + TNFi
Male
Reduced lordosis and increased kyphosis
Bamboo spine
Ank spond
Schober’s +ve
Nail changes
Psoriasis
‘pencil in cup’ X ray
Psoriatic arthritis
Arthritis and IBD features
Enteropathic