The granulomatous disorder, termed oro-facial granulomatosis, includes a localised condition affecting the mouth and face as well as the oral manifestations of Crohn's disease and sarcoidosis. The clinical presentation is variable and the apparent increase in the number of patients presenting in recent years probably reflects a greater diagnostic awareness. The aetiology remains to be established but some patients have been found to be intolerent of certain foods, the elimination of which from their diet leads to a resolution of the facial swelling.