Bones Joints Flashcards
Aymmetric skeletal scelorisis die to impaired fxn of osteoclasts
Osteopetrosis
Deficient osteoclast activityw
Osteopetrosis
Absence of medullary canal, erlenayere flak deformity
Ostepetrosis
Porous bones and eeduced bone mass predispose to fx
Osteoporosis
Osteitis deformans.
Pagets dse
Mosaic pattern of lamellar bone- kihsaw puzzle appearance
Pagets dse
Leontiasis platybasia chalkstick type fx
Pagets dse
Metabolic dse
Pagets dse
Recklonghausen dse of bone
Hyperparathyroidism
Avascular necrosis of ossification centers in children
Legge calve perthes ds
Diaruption of microcirq cause bone infarction
Osteonecrosis
Dead bone
Sequestrum
New bone around dead bome
Involucrum
Bacteria reach the bone by hematogenous spread, xtension ffr contigous site and direct implamentation
Pyogenic ostromyelitis
Most common cause of pyogenic osteo
Staf au
Subperosteal abscess wt draining sinus
Osteomyelitis
Small intraosseous abscess
Brodies
Osteod osteoma less 2 cm: > 2cm
Osteoblastoma
Secere nocturmal pain
Osteoid osteoma
Oval masses of hemorrhagic gritty tan tissue
Osteoid osteoma
Malignant mesenchal tumor in which the cancerous cells produce bone matrix
Osteosarcoma
Codman taingle and sunburst appearance on xray
Osteosarcoma
Benign cartilage capped tumor attached to skeleton by bonu stalk
Osteochondroma
Benign tumor of hyaline cartilage
Chondroma
Sheets of compact polyhedral chondobladts
Chondroblastoma
Chicken wire pattern of mineralization
Chondroblastoma
Wt anaplastic chondrocytes
Chondrosarcoma
Polyostotinc fibrous dysplasia wt cafe au lait spots.mc cune albright syndrom
Fibrous dusplasia
Primary maligant small round cell tors of none and soft tissue. Mutation of ews gene on chrom 22
Ewing sarcoma
Hhomer wright roastees, onion skin appearacne
Ewing
Mutations in rank/rankl signaling pathway
Giant cell tumor
Prigressive erosions of articulat cart
Oa
Mushroom shaped outgrowth
Osteophytes
Dip; pip
Heberdon; bouchards
Assoc wt hla b27 a
Ankylosing spondylitis
aka reactive arthritis
Reiter
Autoantibodies of ra
Rf and anticcp
Bamboo spone deformity
Ankylosing sponsylitis
First sacroileitis
Ankylosisng spondylitis
Sausage shaped dip
Psoriatic arthritis
Pencil inc up def
Psoriatic arthritis
Crystallization within jts
Acute gout
Wt tophi
Chronic gout
Negative befringement
Gout
Crstals surrounded bu inflam cells
Tophi
Msu crystl in kidney
Gouty nephropathy
Intra articulat crystl formation
Paeudogout
Muation in ankh gene
Paeudogout
Positively birefringement cpp crystl
Pseudogout
Marble bone or albers Schonberg dae
Osteopetrosis