This international symposium was entitled "DIFFERENCES OF PRIMARY HYPERPARATHYROIDISM AROUND THE WORLD" on previous Academy meetings and will discuss different aspects of diagnosis, imaging, surgical management and follow-up of primary hyperparathyroidism from a multinational perspective. With expert panelists, it will be case based and focused on interactive discussion with the audience. We will describe differences between profiles of primary hyperparathyroidism throughout diagnostic tests, role of rapid PTH, focused surgery and bilateral approach, multiglandular disease and indications of endoscopic/robotic parathyroidectomy. Gathering experts from United States and Brazil we will discuss every aspect of each case with audience pooling.