Thyroid Gland Noninvasive Follicular Neoplasm with Papillary-Like Nuclear Features

**Semantic type:** Neoplastic Process

**Definition:** A non-invasive neoplasm of thyroid follicular cells with a follicular growth pattern and nuclear features of papillary thyroid carcinoma that has an extremely low malignant potential. These tumors were formerly classified as non-invasive encapsulated follicular variant of papillary thyroid carcinoma or well-differentiated tumor of uncertain malignant potential. (WHO)

**Synonyms:** - Follicular Thyroid Tumor - NIEFVPTC - NIFTP - Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) - Noninvasive Encapsulated Follicular Variant Papillary Thyroid Gland Carcinoma - Noninvasive Encapsulated Follicular Variant Thyroid Gland Papillary Carcinoma - Noninvasive Follicular Thyroid Gland Neoplasm with Papillary-Like Nuclear Features - Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features - Thyroid Gland Noninvasive Follicular Tumor with Papillary-Like Nuclear Features