Autoimmune thyroiditis a fibrous variant of Hashimoto's thyroiditis: A rare case.

Hashimoto thyroiditis (HT) is an autoimmune disorder characterized by inadequate thyroid hormone production. A fibrous variant is one of the rarest entities of Hashimoto's thyroiditis disease. A 42 -year-old female patient presented to our service with neck swelling associated with difficulty swallowing; she was discovered to have an enlarged thyroid gland with mass effect.