Sandbox: foreverbones algorithm

Initial patients evaluation

History and Symptoms ❑ Pain ❑ Response to analgesics Physical examination Age

Imaging

1) Conventional radiography ❑ What type of bone is involved? ❑ Location of the lesion ❑ Morphology of the lesion ❑ Type of calcified matrix involved ❑ Size 2) CT/MRI scan

Children and adolescents

Adults

See children and adolescent evaluation of bone and cartilage mass

Lesion characteristics

Well-defined Listed in frequency order

Ill-defined lesions Listed in frequency order

Sclerotic Listed in frequency order

❑ Metastases ❑ Myeloma ❑ Lymphoma ❑ Bone cyst ❑ Brown tumor

❑ Metastases ❑ Giant cell tumor ❑ Myeloma ❑ Chondrosarcoma

❑ Enchondroma ❑ Osteoma ❑ Fibrous dysplasia ❑ Bone islands ❑ Infection

=ADULT

Initial patients evaluation

History and Symptoms ❑ Pain ❑ Response to analgesics Physical examination Age

Imaging

1) Conventional radiography ❑ What type of bone is involved? ❑ Location of the lesion ❑ Morphology of the lesion ❑ Type of calcified matrix involved ❑ Size 2) CT/MRI scan

More than 30 years Adults

Less than 30 years Children and adolescents

See adult evaluation of bone and cartilage mass

Lesion characteristics

Well-defined

Ill-defined lesions

Sclerotic

❑ Chondroblastoma ❑ Fibrous dysplasia ❑ Aneurysmal bone cyst ❑ Simple bone cyst ❑ Non ossifying fibroma ❑ Chondromyxoid fibroma ❑ Infection

❑ Ewing tumor ❑ Eosinophilic granuloma ❑ Osteosarcoma ❑ Infection

❑ Osteosarcoma ❑ Osteoid osteoma ❑ Fibrous dysplasia ❑ Eosinophilic granuloma ❑ Infection