[Kimura's disease of the hard palate].

Introduction: Kimura's disease is an inflammatory and autoimmune disease that is endemic in Middle East and Asian countries but remains rare in Europe. It usually presents as subcutaneous nodules combined with cervical lymphadenopathies in the cervicofacial region. The oral mucosa localization is extremely rare.

Calcified onchocercal nodule in the infratemporal fossa: a rare case.

Onchocerciasis is a parasitic tropical disease that often presents as multiple, superficial nodules. When it is unique and deeply situated, its clinical diagnosis is difficult. We report a case of a calcified onchocercoma that was localised to the infratemporal fossa.

[Potentially malignant character of oral lichen planus and lichenoid lesions].

Introduction: Many authors have reported the possible malignant transformation of oral lichen. The incidence of this event remains controversial. Many authors make a distinction between the "true" oral lichen planus (OLP) and lichenoid lesions (LL) according to the WHO clinical and histological classification.

Case of Ewing's sarcoma misdiagnosed as a periapical lesion of maxillary incisor.

Ewing's sarcoma (ES) belongs to the group II neuroectodermal tumors. They usually occur in diaphyses of long bones, ribs, and pelvis and are rare in head and neck bones, with only 30 cases reported. The mandible is more affected than the maxilla.

Mandibular cuniculatum carcinoma: apropos of 3 cases and literature review.

Background: Cuniculatum carcinoma is a well-differentiated form of squamous cell carcinoma that shares histologic characteristics with papillary squamous cell carcinoma and verrucous carcinoma. Cuniculatum carcinoma usually occurs on the plantar region, and only 16 cases involving the oral cavity have been described in the literature.

Methods: The authors have reported 3 cases of mandibular cuniculatum carcinoma.