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Torus palatinus - Oral Mucosal Lesion
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Torus palatinus - Oral Mucosal Lesion

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Contributors: Carl Allen DDS, MSD, Sook-Bin Woo MS, DMD, MMSc
Other Resources UpToDate PubMed

Synopsis

Torus Palatinus is an exostosis, a benign localized bony protuberance on the midline of the palate. Tori on the lingual mandible are referred to as torus mandibularis and are discussed separately. Tori (palatinus and mandibularis) are likely caused by a combination of genetic and environmental factors. They tend to occur more often in the Asian and Inuit population with a slight female predilection. They are most commonly noticed during the early adult years. Patients are often unaware of the presence of tori since they usually have been present for a long time and grow very slowly. Some cases exhibit a "growth spurt" and patients become aware of a fairly rapidly enlarging mass.

Genetic and environmental factors (such as chronic irritation) likely play a role in the development of these lesions. Some tori may also regress or become smaller over time. Tori are usually painless unless the areas are traumatized.

For more information, see OMIM.

Codes

ICD10CM:
M27.0 – Developmental disorders of jaws

SNOMEDCT:
46752004 – Palatal torus

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Pleomorphic adenomas of the hard palate may sometimes contain abundant bone and feel bony hard. In general, these are noticeably growing lesions and tend to be located on either the left or right side of the palate and not in the midline.
  • Osteomas are considered true neoplasms and therefore would exhibit steady and noticeable growth over a short period of time.

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Therapy

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References

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Last Updated: 03/30/2017
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Torus palatinus - Oral Mucosal Lesion
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Torus palatinus : Hard palate, Oral tumor, Soft palate/tonsillar, Oral nodule
Clinical image of Torus palatinus
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