Invasive Follicular Variant Thyroid Gland Papillary Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A nonencapsulated, infiltrating papillary carcinoma of the thyroid gland characterized by the predominance of follicular structures. The malignant follicular cells display the nuclear features that characterize the papillary adenocarcinomas of the thyroid gland.

**Synonyms:** - Follicular Variant Thyroid Gland Papillary Carcinoma, Infiltrative Subtype