|Other names: Benign osteogenic tumors, unspecified and osteoma NOS. Not recommended: ivory exostosis, parosteal osteoma, torus palatines/mandibularis|
|CT scan: Osteoma growing on inside of skull bone|
|Symptoms||None, pain, headache|
|Diagnostic method||Medical imaging: X-ray, CT scan, MRI|
Osteoma (plural: "osteomata" or "osteomas"), is a non-cancerous bone tumor, a type osteogenic tumor, where a new piece of bone typically grows on another piece of bone, usually on the skull and near the sinuses. Often there are no symptoms as the tumor grows slowly, but there may be pain, headache, blocked paranasal sinuses or local swelling. It may present with sinusitis.
Medical imaging such as X-ray, CT scan and MRI show dense, clearly defined, round white tumors attached to bone. They can be left alone if not troubling, and surgically cut out if pressure symptoms. The surgery may be possible through the nose, without making a large cut.
Signs and symptoms
Medical imaging such as X-ray, CT scan and MRI show dense, clearly defined, round white tumors attached to bone. They may be diagnosed when having medical imaging for another reason. Osteomas of the paranasal sinuses and skull base can be diagnosed using CT-scan without intravenous contrast, allowing its size and relation to nearby important structures to be assessed. A biopsy is not usually required.
They can be left alone if not troubling, and surgically cut out if pressure symptoms.
Findings of osteomata date back to ancient Egypt (664-332 BCE).
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- "ICD-11 - ICD-11 for Mortality and Morbidity Statistics". icd.who.int. Archived from the original on 1 August 2018. Retrieved 16 July 2021.
- "Osteoma". Stanford Medicine: Skull Base Surgery (in Gagana Samoa). Archived from the original on 18 January 2021. Retrieved 15 July 2021.
- Michael S. Schwartz, MD; Dennis M. Crockett, MD. "Management of a Large Frontoethmoid Osteoma with Sinus Cranialization and Cranial Bone Graft Reconstruction". International Journal of Pediatric Otorhinolaryngology. Archived from the original on 2012-02-16. Retrieved 2020-03-24.