What is NFITP (non-invasive follicular thyroid neoplasm)?

Encapsulated non-invasive follicular PTC are called NFITP, they have low-grade behavior, 20% of cases in europe, no risk of cancer death and recurrence <1%, dx requires pathological exam seeing follicular pattern nodule exclude capsular invasion and papillary formation. Correct identification reduces unnecessary use of surgery and radioactive iodine (Not a cancer)