Loss of lingual sensitivity and slightly increased size signaling schwannoma in a patient with mixed conjunctive tissue disease.

The purpose of this study was to describe an unusual case of a lingual schwannoma associated with a mixed connective tissue disease (MCTD). A case report. A lingual schwannoma with loss of lingual sensitivity and slightly increased size in an 18-year-old patient with MCTD was correctly diagnosed through a biopsy and no reoccurrence was observed one year after the surgical removal of the tumor and sensitivity returned 3 months after surgery. This case was considered uncommon, making the clinical diagnosis challenging in view of the diversity of possibilities for its differential diagnosis, thus showing the importance of a biopsy to confirm the diagnosis and long term follow up in such cases.

Regional odontodysplasia: report of a case involving two separate affected areas.

The purpose of this study was to report in a 12-year old white child a rare clinical condition called regional odontodysplasia. The diagnosis was based on clinical and radiographic findings. Due to the patient's concern over appearance, the treatment involved extracting the affected teeth and subsequently placing partial removable prostheses, thus providing the patient better function and appearance. The teeth that were removed were examined histologically, both in routine preparation stained by hematoxyline and eosin, and in ground sections.