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