[Cherubism: regression of the lesions and spontaneous bone regeneration].

Three cases of cherubism belonging to the same genealogical tree which had been followed up since the age of 7 years to adulthood are presented. These cases prove that, without treatment, the regression of the lesions and bone regeneration are real and not anecdotal. Nevertheless, following spontaneous bone regeneration, radiographically some radiolucent areas of low intensity and devoid of trabeculations, and/or areas of sclerotic bone do persist.

[Malignant transformation of odontogenic cysts].

Five out of 4,172 operated maxillary cysts (3 developed within the maxillary and 2 in the mandible) presented a malignant change of epithelium. In all these 5 cases histology demonstrated a transition from normal to cancerous epithelium. The overall percentage of malignant change was of 0.

[Long-term results of bilateral complete parotidectomy in Sjogren's syndrome].

After a delay of 7 to 21 years, bilateral parotidectomy with complete preservation of the facial nerves and myoplasty of the post-operative cavities for enlarged parotid glands due to Sjögren's syndrome was found to have been beneficial in 10 patients. Excellent results were obtained both in terms of aesthetic and psychic outcome, but also in terms of greatly improved general health. Patients' psychoaffective, familial, professional and social lifestyle had returned to normal.