<prompt> Struma-lymphomatosa term is used for:De-Quervain thyroiditisHashimotos thyroiditisReidles thyroiditisSuppurative thyroiditis  <response>: Hashimotos thyroiditis: Ref: 957-LB, 2117-H 799-B L 25thHashimotos Thyroiditis Struma-lymphomatosa or diffuse lymphocytic thyroiditis, goitrous autoimmune thyroiditis, autoimmune chronic lymphocytic The most common clinically apparent cause of chronic thyroiditis is hashimotos thyroiditis, an auto immune disorder that often presents as a firm or hard goiter of variable size.Riedels thyroiditis Invasive fibrous thyroiditis, Riedels struma, Woody thyroiditis, ligneous thyroiditis Rare insidious onset, painless goiter with local symptoms due to compression of the esophagus, trachea, neck veins or recurrent laryngeal nerves. Thyroid dysfunction is uncommon There is an association between Riedels thyroiditis and idiopathic fibrosis at other sites retroperitoneum, mediastinum, biliary tree, lung and orbit 2117-H 