Methods:
At this stage two differential diagnosis have been proposed:
- Periapical or latero-radicular cysts of inflammatory origin have been ruled out since both teeth were free from decay with a positive vitality test.
- Brown tumor, which might be secondary to renal failure, like in this case
Biological examination: showed hyperparathyroidism (PTH = 3919.0 pg/ml while the normal value is between 15 and 65 pg/ml) (Calcium = 2.38 mmol/l Normokalaemia) (Phosphorus = 1.70 mmom/l) and hyperphosphatemia. These values were in favor of hyperparathyroidism secondary to chronic renal failure.The patient was referred to an endocrinologist for more explorations. A thyroid gland ultrasound revealed the presence of parathyroid adenoma.