Ectopic parathyroid

The frequency of the parathyroid ectopies is stated otherwise in the literature. The ectopies of pathological parathyroid glands responsible for primary hyperparathyroidism can be divided into minor and major. The children ectopies, the most frequent, are limited to the thyroid and are often responsible for persistence of disease in the operations performed by inexperienced operators. The ectopies more, less than 10% of cases, both are the result of abnormal migration during embryogenesis, migration is captured by gravity or adhesions secondary to previous surgeries. Knowledge of the various mechanism of migration of the parathyroid glands during surgical exploration guide their research when you are faced with an ectopia, often being accessed by the cervical route. In the first surgery, the use of preoperative localization is essential if you practice a minimally-invasive focused, remaining issue in the case of systematic bilateral exploration. Faced with a persistent or recurrent hyperparathyroidism, the pre-operative localization tests have an important role, especially if the first operation was performed by an experienced surgeon in this situation by increasing the suspicion of a major ectopia.