[Malignant maxillofacial extra-nodal lymphoma].

64 patients with extra-nodal maxillo-facial NHL were seen between 1969 and 1989. These rare tumours (1 to 4% of stomatological tumours) tended to occur more often in men (60% of cases) between the ages of 40 and 70. Bony involvement was common (maxillary and mandibular involvement), though more rarely the salivary glands or mucosa were involved, presenting as a swelling with lysis of underlying bone. Highly malignant varieties (85% of cases) were most commonly encountered. The treatment remains medical, involving chemotherapy (C.H.O.P. or high dose methotrexate) and gives an actuarial survival rate of 50% at 3 years.