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55 Cards in this Set
- Front
- Back
what is purpose of surgical staging system
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incorporate significant prognostic factors
stratify for surgical managment provide guidelines for adjunctive therapies |
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what are staging factors
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histologic grade
intraosseous or extraosseous extent of the tumor presence of mets |
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what are the stages of MSTS
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1-low grade
2- high grade 3-metastatic tumors |
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a subclassification
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bone has not grown beyond compartment
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b subclassifiction
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tumor extends into adjacent soft tissue compartment
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what is metastatic disease classification in AJCC
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4
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4a in AJCC
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lymph node metastases only
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4b in AJCC
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distant metastases
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1A MSTS
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low
intracompartmental no mets |
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1B MSTS
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low
extracompartmental no mets |
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2A MSTS
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high
intracompartmental none |
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2B MSTS
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high
extracompartmental none |
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3 MSTS
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any
any mets present |
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tumors with skip mets
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3
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T1 AJCC
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tumor 8 cm or less
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T2 AJCC
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tumor more than 8 cm in greatest dimension
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T3 AJCC
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skip mets
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M1a AJCC
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lung only mets
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M1b AJCC
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mets at other sites including lymph nodes
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TNM
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tumor node metastasis system
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most common bone tumor in foot
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osteochondroma
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where are enchondromas found in feet
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metatarsals or phalanges of lesser toes
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enchondromatosis
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olliers disease
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periosteal chondroma aka
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juxtacortical chondroma
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periosteal chondroma must be differentiated from what
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osteosarcoma
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place for chondroblastoma
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subchondral areas of talus and calcaneus and calcaneal apophysis
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what is the recurrence with chondroblastoma
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common check for pulmonary mets with recurrence
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chondromyxoid fibroma is similar to what
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chondrosarcoma
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most common location for osteoid osteoma
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neck of talus
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clinical sign for osteoid osteoma
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pain at night relieved by aspirin
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most common malignant bone tumor in the foot
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chondrosarcoma
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who is at risk for chondrosarcoma
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patients with olliers or multiple enchondromas
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survival of ewings withoug mets
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88%
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survival of ewings with non pulmonary mets
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10%
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survival of ewings with pulmonary mets
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0%
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survival of ewings with tumor in forefoot
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70%
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survival of ewings with tumor in rearfoot
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33%
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most common site for bone tumors in foot
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mets and calcaneus
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BT are how much more likely to be benign then malignant
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4x
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three types of erosions
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geographic
motheaten permeated |
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1a lesion
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geographic with sharp borders thinly sclerotic
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1b lesion
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geographic with sharp non sclerotic margin
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1c lesion
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geographic with poorly defined margin
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1d
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thick sclerotic capsule
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2 lesion
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geographic with mothean or permeative component
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3 lesion
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pure motheaten or permeative
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most common 1a
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interosseous lipoma
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Id differential
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abscess
osteoid blastoma esoniphil granuloma |
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prototypic 1b
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giant cell tumor
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1c lesions
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GCT
CMF active enchondromas osteosarcoma fibrosarcoma chondrosarcoma |
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solid process are hallmarks of what
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benign processes
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codmans triangle is a what
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upstaging sign
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tumor that likes to buttress
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juxtacortical chondroma
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sunburst is highly suggestive of what
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osteosarcoma
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sunburst is not pathognomonic for what
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osteosarcoma or ewings
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