Ortho stuff Flashcards
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Adamantanoma
Polyostotic bone lesion
OC Enchondroma Fibrous dysplasia GCT Ewing’s
Radio resistant
OS
CS
Malignant fibrous histiocytoma
Upper end of humerus
UBC > CB
ABC
Lower metaphysis of tibia femur
Osteoid osteoma
Femur then tibia
Ivory Osteoma
Face and skull
Enchondromas
Hand bones
Adamant
Amelo
Adam- tibia
Amelo- mandible (scc)
MM
Mets
MM - Lumbar vert
Mets - dorsal thoracic vert
Purely BLASTIC
PCMB
Prostate
Carcinoid
Medulloblastoma
BASTIC
Mc primary
Breast females
Lungs makes
Children - neuroblastoma
Bone to bone mets
BONE
OS
Neuroblastoma
Ewing’s mc
Simple bone cyst
“Fallen leaf 🍃 sign”
BEECH
Brodies. Brown tumor Eosinophilic granuloma Enchondroma CB Haemophilia
Single cavity in metaphysis 1st decade Upper humerus Central concentric Straw color
UBC
Curettage and BG
Multiloculated Eccentric Tibia LL Fluid fluid level More expansile Hemorrhagic fluid
ABC
Extended curettage
Eccentric tumor
NAG Expands
NOF
ABC
GCT
Large to feel small on X-ray
Pain bursitis and #
Diaphysial aclasis
?malig
Osteochondroma
Extraperiosteal resection
Mc true benign lesion
Night pain 😌 on salicyclates
NIDUS in cortex
Osteoblasts and clasts
Osteoid osteoma
RFA
Compact osteoma
Skull and face
Eburnated
Ivory osteoma
No Rx
Codmans tumor
Epiphysis
Calcification +
Mc upper end humerus
CB
Extended curettage
Mc benign lesion bone
1st decade
Metaphyseal
Self healing no malig potential
NOF/Fibrous cortical defect
Mc tumor of bones of hands and teeth
Hyaline cart
5% premalig
Enchondroma
Extended curettage
Olliers
Maffauci
Ollier - Only enchondromas
Maffauci- many things along with enchondroma + hemangioma + phleboliths
100% premalig
Malignant cell is mononuclear cell
Mets to lungs
More in Girls
Goes to joint
GCT
Extended curettage with BG with fibula
Shepherd hook deformity
Mc Cune Albright
Rind sign
Fibrous dysplasia
Mc cune albright
Fibrous dysplasia
Cafe au lait
Precocious puberty
Letterer Siwe disease
Hand schuller Christian
Eosinophilic granuloma
LCH
Spontaneous resolution
Birbeck granules TENNIS racket shape on EM
LCH
<3y fatal
Letterer siwe
Lytic skull lesion
Exophthalmos
Diabetes insipidus
Hand schuller Christian
Solitary bone/lung Lung - histiocytosis X Skull - bevelled lytic lesion mc CD1a S100+
Eosinophilic granuloma
Jail bar
Courdroy appearance
Polka dot sign
Hemangioma
Sacrum Lytic lesion
Notochord remnant
Physaliferous cells
2nd mc malig of spine after MM
Chordoma
Excision +/- radiation
Radio resistant Germ line RB mutation Night pain Mc lower end of femur Metaphysis Intramedullary tumor
OS
DOC- MTX
Doc for OS
MTX
No etoposide. Never
Marrow tumor 2nd > 1st decade Femur diaphysis Pain, ?OM Onion peel
Ewing’s
ChemoRx
Genes in Ewing’s
21,22 17,22 11,22 Trisomy 8&12 MIC2 specific CD99 specific
Pelvis
I’ll defined margin
Hyperglycaemia +
CS
> 20% plasma cells
No CRAB
Plasma cell leukaemia
CRAB?
HyperCa
Renal failure
Anemia
Bone Lytic lesions
MM
Bursa tumor
Biphasic tumor ~ Squamous and mesenchymal cells +
t(X;18)
SYT SSX fusion gene
Synovial cell CA
Skull Lytic lesions
MELTHROME
MM Eosinophilic granuloma LCH TB HyperPTH RadioRx OM Mets Epidermoid