Hashimoto Thyroiditis, also known as autoimmune thyroiditis, is related to autoimmune thyroid disease 3 and thyroid lymphoma. An important gene associated with Hashimoto Thyroiditis is CTLA4 (Cytotoxic T-Lymphocyte Associated Protein 4), and among its related pathways/superpathways are 4-1BB Pathway and NF-kappaB Signaling. The drugs Selenium and Dexamethasone have been mentioned in the context of this disorder. Affiliated tissues include thyroid and heart, and related phenotypes are hashimoto thyroiditis and autoimmune antibody positivity