TOPICS: Hashimoto thyroiditis, chronic lymphocytic thyroiditis, HLA-DR5, hypothyroidism, germinal centers, hürthle cells, antithyroglobulin and antithyroid peroxidase antibodies, B-cell (marginal zone) lymphoma, subacute granulomatous (De Quervain) thyroiditis, viral infection, self-limited, riedel fibrosing thyroiditis, hard as wood thyroid, dysphagia, respiratory compromise, anaplastic carcinoma