Often present with a painful swollen area, lytic on X-ray
- calcaneus > talus
- rare in skeletally immature
- curettage and grafting
- local recurrence ~50 %
- may need to bone graft defects
Can occur in foot and ankle
- single or multiple
- simple excision at base
- malignant transformation very rare in foot
Subungal exostosis
Benign tumour that arises from synovial tissues
- found near synovial-lined tendon sheaths
? Localised PVNS
2nd most common tumour of the hand
Age 40 - 60
Unknown origin
- theorized to be localized form PVNS
- similar histology
Benign lesion with a wide spectrum of behavior characterized by stromal cells and giant cells
Common
- 20% of benign tumours
More common females
- F:M = 1.5:1
- most tumours M>F
Usually patient in 20's
- usually after skeletal maturity
- 3% < epiphyseal closure
Benign
Osteoid Osteoma
Osteoblastoma
Osteochondroma
ABC
Hemangioma
Giant Cell tumour
EG
Malignant
Chordoma
Ewings
Osteosarcoma
Chondrosarcoma
Lymphoma
Multiple myeloma
Leukaemia