malignant bone and soft tissue tumors Flashcards
destructive lytic or blastic with cloudlike opacities
osteosarcoma
destructive lesions, punctuate calcifications, cortical scalloping and disruption
chondrosarcoma
permeative, lytic pattern or bone destruction
ewing’s
lytic moth eating cortical disruption
MFH
lytic lesions with involvement of anterolateral cortex
adamantinoma
well demarcated intracortical lytic lesion
osteoid osteoma
similar to osteoid osteoma, but with less sclerosis
osteoblastoma
radiolucent defect with punctuate and stippled calcifications <2cm
enchondroma
sharply demarcated epiphyseal defect
chondroblastoma
eccentric cortical based lytic defec with scalloped margins
chondromyxoid fibroma
lytic defect with permanent striations, honeycomb appearance
hemangioma
central lytic defect with ground glass appearace
fibrous dysplasia
eccentric cortex based lytic defect with sharp scalloped margins
Non-ossifying fibroma
expansile lytic defect
ABC
ill defined multi-nodular periarticular mass
pigmented villonodular synovitis
zonal maturation with a peripheral shell around the bone
myositis ossificans
most common sites of simple bone cyst
proximal humerus 55%
proximal femur 20%
most common sites of chordoma
base of skull or sacrum
most common site of adamantinoma
midshaft of tibia, jaws
most common site of chondroblastoma
long bones, knee, proximal humerus
most common site of GCT
knee, distal radius
most common site of enchondroma
small bones of hands and feet
most common site of Abc
spine, any bone
most common benign lesions for 0-10 age group
SBC, eosinophilic granuloma
most common benign lesions for 10-20 age group
Non-ossifying fibroma, fibrous dysplasia, ABC, osteochondroma, osteoid osteoma, osteoblastoma, chondroblastoma, chondromyxoid myxoma
most common benign lesions for 20-40 age group
enchondroma, gct
most common benign lesion for >40 age group
osteoma
most common malignant lesions for 0-10 age group
Ewing’s sarcoma, Leukemia, metastatic neuroblastoma
most common malignant lesions for 10-20 age group
osteosarcoma, ewing’s sarcoma, adamantinoma
most common malignant lesions for 20-40 age group
chondrosarcoma
most common malignant lesions for >40 age group
metastatic tumors mm leukemia paget's mfh chordoma chondrosarcoma
