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Mandibular osteomas in ulcerative colitis.

J O Søndergaard, L B Svendsen, J O Hegnhøj

Scandinavian Journal of Gastroenterology

|November 1, 1986

Summary

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Mandibular osteomas occurred in 4% of ulcerative colitis patients, similar to the general population. This suggests ulcerative colitis-associated colorectal cancer arises from disease duration, not shared genetic/environmental factors with other conditions.

Area of Science:

Oral pathology
Gastroenterology
Oncology

Background:

Ulcerative colitis (UC) is an inflammatory bowel disease.
Mandibular osteomas are benign bone tumors.
Previous studies linked mandibular osteomas to familial polyposis coli and colorectal cancer.

Purpose of the Study:

To investigate the frequency of mandibular osteomas in patients with ulcerative colitis.
To compare this frequency to the general population.
To explore the etiological factors of colorectal carcinoma in UC.

Main Methods:

Orthopantomography (dental X-ray) was performed on 50 consecutive ulcerative colitis patients.
Mandibular osteomas were identified and quantified.
Findings were compared to existing population data.

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Main Results:

Mandibular osteomas were found in 2 out of 50 patients (4%).
This prevalence is consistent with the frequency observed in the general population.
The study did not find an increased association between UC and mandibular osteomas.

Conclusions:

The etiology of colorectal carcinoma in ulcerative colitis likely differs from that of familial polyposis coli and sporadic colorectal cancer.
Colorectal cancer in UC may be primarily a function of disease duration and extent.
Mandibular osteomas are not a significant indicator for increased colorectal cancer risk in UC patients.