Poorly Differentiated Thyroid Gland Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A follicular-derived thyroid gland carcinoma that is histologically poorly differentiated and has high-grade features.

**Synonyms:** - Insular Carcinoma - Insular carcinoma - PDTC - Poorly Differentiated Carcinoma of Thyroid Gland - Poorly Differentiated Carcinoma of the Thyroid Gland - Poorly Differentiated Thyroid Carcinoma - Poorly Differentiated Thyroid Gland Cancer - Thyroid Gland Poorly Differentiated Carcinoma