Invasive Encapsulated Follicular Variant Thyroid Gland Papillary Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A papillary carcinoma of the thyroid gland which is encapsulated and resembles an encapsulated follicular neoplasm. Capsular invasion is present. The malignant follicular cells display the nuclear features that characterize the papillary adenocarcinomas of the thyroid gland.

**Synonyms:** - Follicular Variant Thyroid Gland Papillary Carcinoma, Encapsulated Subtype with Invasion - IEFVPTC - Invasive Encapsulated Follicular Variant Papillary Carcinoma - Invasive encapsulated follicular variant of papillary thyroid carcinoma (invasive EFVPTC) - Solid papillary carcinoma with invasion