Pathology: Bone Tumours

Benign

Subungual exostosis

Bizarre parosteal osteochonromatous proliferation

Periosteal chondroma

Enchondroma

Osteochondroma

Chondroblastoma

Chondromyxoid fibroma

Osteochondromyxoma

Intermediate (locally aggressive)

Synovial chondromatosis (not per se a bone tumour)

Malignant

Chondrosarcoma, grade 1

Chondrosarcoma, grade 2-3

Periosteal chondrosarcoma

Secondary chondrosarcoma

Clear cell chondrosarcoma

Mesenchymal chondrosarcoma

Dedifferentiated chondrosarcoma

Benign

Osteoma

Osteoid osteoma

Intermediate (locally aggressive)

Osteoblastoma

Malignant

Low-grade central osteosarcoma

Osteosarcoma, conventional

Parosteal osteosarcoma

Periosteal osteosarcoma

High-grade surface osteosarcoma

Secondary osteosarcoma

Benign

Desmoplastic fibroma

Malignant

Fibrosarcoma of bone

Benign

Aneurysmal bone cyst

Non-ossifying fibroma

Intermediate

Giant cell tumour of bone

Benign

Benign notochordal cell tumour

Malignant

Conventional chordoma

Dedifferentiated chordoma

Poorly differentiated chordoma

Benign

Chondromesenchymal hamartoma of chest wall

Simple bone cyst

Fibrous dysplasia

Osteofibrous dysplasia

Fibrocartilaginous mesenchymoma

Malignant

Adamantinoma / Osteofibrous dysplasia–like adamantinoma

Ewing sarcoma

Round cell sarcoma with EWSR1—non-ETS fusions

CIC-rearranged sarcoma

BCOR-altered sarcoma

Pending inclusion

Intra-osseous rhabdomyosarcoma (emerging)