Abstract: Orofacial granulomatosis is a nonspecific term that contains a wide variety of granulomatous entities, which share a clinical and histopathological presentation. It manifests as persistent or recurrent orofacial swelling, amongst other findings. Idiopathic orofacial granulomatosis, characterized by an absence of systemic granulomatous disease, is a diagnosis of exclusion. The main differential diagnosis is Crohn's disease. Its pathogenesis is unknown, however, it seems to be immune-mediated. Patch-test sensitivity to multiple allergens is well documented. Currently, therapeutic options consider restrictive diets, topical, intralesional, and systemic agents. First-line therapy is currently a matter of debate. We present a review of the value of diet therapy in this syndrome, along with two illustrative cases.

Laugier-Hunziker syndrome is a rare benign idiopathic condition characterized by acquired macular pigmentation of lips and buccal mucosa, often accompanied with melanonychia. The main concern with this condition is to rule out other differential diagnosis with systemic repercussions and similar hyperpigmentation patterns, such as Peutz-Jeghers syndrome, adrenal insufficiency and melanoma. We report a 58-year-old female with a 20-year history of Sjögren’s syndrome, presenting with melanonychia and hyperpigmentation in the buccal mucosa. She had no relevant medication history and is a non-smoker. The patient denied any other symptoms. The histopathology confirmed the diagnosis of Laugier-Hunziker syndrome.