Zusammenfassung der Ressource
bone tumours
- malignant
bone tumours
uncommon
before
puberty
- male>female
- osteogenic sarcoma
- more common
- Ewing sarcoma
- seen more freq in younger kids
- clinical features
- limbs commonest site
- characteristic sx
- persistent localised bone pain
- indication for early x-ray
- precedes
detection
of a
mass
- pts otherwise well @ diag
- Ix
- 1st plain Xray
- then MRI & bone scan
- shows destruction & variable periosteal new bone formation
- substantial soft tissue mass
- in Ewing sarcoma
- chest CT
- to assess for lung mets
- bone marrow sampling
- exclude marrow involvement
- Mx
- in both tumours
- combo chemo
- then surgery
- amputation avoided where possible
- using en bloc resection of tumours w/ endoprosthetic resection
- Ewing sarcoma
- radiotherapy also used
- manage local disease, esp
when surgical resection
impossible/incomplete e.g. in pelvis, axial skeleton