Ortho-1-Characteristics features of Bone Tumours

medmaestro's version from 2015-11-28 03:30


Characteristic featuresBONE TUMOURS
Neoplastic new bone/ OSTEOID formation in sarcomatous stromaOsteosarcoma
NOCTURNAL PAIN RELIEVED BY SALICYLATES,Double density sign ,Lucent nidus of osteoblastic tissue surrounded by reactive sclerosisosteoid osteoma
Small blue round cells with PAS positive diastase,Bone destructionEwing’s sarcoma(1)
Physaliferous cellschordoma
HOMER WRIGHT PSEUDOROSETTES,Onion skin lesions,Bone tumour resembling OSTEOMYELITISEwing’s sarcoma(2)
Ballooned appearance ,Fallen fragment signunicameral bone cyst
Finger in balloon , pencil in cup appearanceaneurismal bone cyst
Herring bone arrangement of fibroblastsfibrosarcoma
Benign bone condition with cellular atypiachondromyxoid fibroma
Honeycomb appearanceadamantinoma


Question Answer
Pinwheel pattern /Storiform/whorled/radiating bundlesnon-ossifying fibroma,fibrous cortical defect
Shepherd crook’s deformity of femur,Ring of Orange , Smoky matrix ,Leontiosis osseafibrous dysplasia
COAST OF MAINE appearance polyostotic fibrous dysplasia , Mc Cune Albright syndrome
Driven snow appearancePindborgs tumour
String signparosteal osteosarcoma
Target calcificationosseous lipoma
Polka dot sign,Corduroy/Accordion signvertebral hemangioma
Nocturnal pain NOT RELIEVED BY SALICYLATESOsteoblastoma
Trumpet shaped metaphysic ,Coat hanger appearanceDiaphyseal aclasis


Question Answer
O ring sign,Punctate/stippled calcification /Flicks/Wisp of calcifications in lucent area,Celery stick appearance,Associated with Wolliers disease & MAFFUCCI SyndromeEnchondroma
Eccentric geographic lytic lesion,Dense punctuate mottled calcification,CHICKEN WIRE mineralization /calcification /CODMANS TUMOURchondroblastoma
CODMANS TRIANGLE,Sunray appearance,bone tumour with calcified secondariesosteosarcoma
Endosteal scalloping,Most common malignant tumour to appear benign radiologically,Dense popcorn / comma calcificationchondrosarcoma
Eccentric epiphyseal lytic lesion with Soap Bubble appearance,Multinucleate giant cellsGiant cell tumour(Osteoclastoma)
Wormian bonesosteogenesis imperfecta
Risser’s signepiphysis of long bones
Aneurysmal signTB Spine (ANTERIOR type)


Question Answer
Tonguing of vertebraMorquio-Brails disease
Trethowan’s signSlipped Capital Femoral Epiphysis
Sagging rope signPerthe’s disease
Patchy calcificationChondrosarcoma (Malignant tumour appearing benign on X Ray )
FabellaSesamoid bone in the LATERAL head of Gastrocnemius
Spondylosisdegenerative spine disease
Spondylolysisbreak in Posterior elements (At pars interarticularis)
Spondylolisthesisslip of one vertebra over the other