Thyroid Angiosarcoma, also known as hemangiosarcoma of the thyroid, is related to angiosarcoma and goiter. An important gene associated with Thyroid Angiosarcoma is PECAM1 (Platelet And Endothelial Cell Adhesion Molecule 1), and among its related pathways/superpathways is Dendritic Cells Developmental Lineage Pathway. Affiliated tissues include thyroid and small intestine.