Introduction: Amyloid goiter is due to the deposition of amyloid in the thyroid, resulting with enlargement of the gland and compressive symptoms.
Case: We herein present a case of a 45-year-old male patient who complained of a big swelling in the neck. Ultrasound showed an enlarged thyroid gland with mediastinal involvement. The multinodular appearance was consistent with the diagnosis of multinodular goiter. He had a history of multiple myeloma but no sign of systemic amyloidosis.
Discussion: Thyroid gland was removed and the histopathological examination revealed a diffuse deposition of amyloid associated with metaplastic lipomatosis of the stroma.
Conclusions: The treatment of choice in patients with amyloid goiter is total thyroidectomy to solve compression symptoms.
Keywords: Amyloidosis; Goiter; Primary amyloidosis; Thyroid; Thyroid disease.
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