Bone + Soft Tissue Tumours Flashcards
What is the most common benign bone tumour?
Osteochondroma
What is an osteochondroma and who gets them?
Bony outgrowth on the external surface with a cartilaginous cap
Age 10-20
What does an osteochondroma look like on xray?
Pedunculated bony outgrowth
What is the management of an osteochondroma?
Only needs to be excised if growing or painful
What is an enchondroma?
Intramedullary, metaphyseal, cartilaginous tumour
Caused by failure of normal endochondral ossification at growth plate
What does an enchondroma look like on xray?
Lucent oval + intact cortex
What is the management for an enchondroma?
If risk of impending fracture –> curettage + filled with bone graft
What is another name for osteoclastomas?
Giant cell tumours
What are osteoclastomas?
Giant cell tumour of epiphysis of long bones
–> pain, swelling and limitation of joint movement
What do osteoclastomas look like on xray?
Eccentric lytic area giving a ‘soap bubble’ appearance
What is the management of osteoclastomas/giant cell tumours?
Surgical resection
What are osteoid osteomas and how do they present?
Small tumours at metaphysis of long bones
Males ages 10-20
Localised progressive pain, worse at night
What do osteoid osteomas look like on xray?
Small lucent nidus surrounded by halo of reactive bone
What is the management of osteoid osteomas?
Conservative with NSAIDs for bone pain or
Surgical resection
What is a simple bone cyst?
Benign, fluid filled cyst
Metaphyseal in long bones, talus or calcaneus
What is an aneurysmal bone cyst and how is it managed?
Cyst containing multiple chambers filled with blood or serum
Locally aggressive causing cortical expansion + destruction
Painful + risk of fracture
–> curettage + grafting/bone cement