NIFTP or non-invasive follicular thyroid neoplasm with papillary-like nuclear features is a term used in the medical field to refer to a particular type of thyroid tumor. This tumor is considered low-risk and highly treatable. Some synonyms used to describe NIFTP include encapsulated follicular variant of papillary thyroid carcinoma, follicular adenoma-like variant of papillary thyroid carcinoma, and non-invasive follicular thyroid adenoma. These synonyms are used interchangeably with NIFTP due to the similarities in the characteristics of the tumor with follicular thyroid adenomas and papillary thyroid carcinomas. It is important to differentiate NIFTP from invasive types of thyroid cancers to guide proper diagnosis and treatment.