Flashcards in 1- Bone Tumours Deck (28)
What is the commonest benign bone tumour?
What does an osteochondroma look like?
Bony outgrowth on external surface with cartilagenous cap
What is the name given to an intramedullary, usually metaphyseal, cartilagenous tumour caused by failure of normal endochondral ossification?
What does an enchondroma look like?
Usually lucent but can have patchy, sclerotic appearance
Which bones are usually affected by enchondromas?
Long bones (femur, humerus, tibia)
Small bones of hands and feet
What is the name given to a single-cavity benign fluid-filled cyst in a bone?
Simple bone cyst
How do simple bone cysts probably arise?
Growth defect from the physis
What do you call a bone cyst containing lots of chambers, usually filled with blood?
Aneurysmal bone cyst
Where do giant cell tumours usually occur?
Around the knee and distal radius
Are giant cell tumours painful?
What is the characteristic appearance of giant cell tumours on XR?
When does fibrous dysplasia of bone usually occur?
Adolescence, producing immature bone/fibrosis
What name is given to a small nidus of immature bone surrounded by a sclerotic halo?
What is the predominant clinical feature of osteoid osteoma?
Intense constant pain that is worse at night, relieved by NSAIDs
List general treatment for benign bone tumours
What is the most common primary bone tumour?
Most cases of osteosarcoma are seen in over 50s. True/False?
Most cases are seen in adolescence/early adulthood
Where does osteosarcoma affect 60% of the time?
Which is more common - chondrosarcoma or Ewing's sarcoma?
Which age group is usually affected by chondrosarcoma?
What is Ewing's sarcoma?
Malignant tumour of primative cells in the marrow
Most cases of Ewing's sarcoma occur between the ages of 10 and 20. True/False?
List general treatment for primary malignant bone tumours
List the primary malignant tumours that metastasise commonly to bone, from most to less frequent
Renal cell carcinoma
List features suggestive of a benign soft tissue neoplasm
List features suggestive of a malignant soft tissue neoplasm
What is the commonest benign soft tissue tumour?