Turret exostosis
Turret exostoses are a benign osteocartilaginous lesion.
Pathology
A turret exostosis is believed to arise from reactive periosteum after relatively mild trauma. It is usually seen as a smooth dome-shaped parosteal bone proliferation.
Location
Turret exostoses are most often found in the phalanges but may also present in rare sites such as the talus 1.
Differential diagnosis
In certain situations, consider:
Related Radiopaedia articles
Bone tumours
The differential diagnosis for bone tumors is dependent on the age of the patient, with a very different set of differentials for the pediatric patient.
-
bone tumors
- bone-forming tumors
- cartilage-forming tumors
- fibrous bone lesions
- bone marrow tumors
- other bone tumors or tumor-like lesions
- adamantinoma
- aneurysmal bone cyst
- benign fibrous histiocytoma
- chordoma
- giant cell tumor of bone
- Gorham massive osteolysis
- hemangioendothelioma
- haemophilic pseudotumor
- intradiploic epidermoid cyst
- intraosseous lipoma
- musculoskeletal angiosarcoma
- musculoskeletal hemangiopericytoma
- primary intraosseous hemangioma
- post-traumatic cystic bone lesion
- simple bone cyst
-
skeletal metastases
- morphology
- location
- impending fracture risk
- staging
- approach
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