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Abstract  A 44-year-old woman came to medical attention with right thyroid lobe enlargement and weight loss. Thyroid scan and ultrasound
demonstrated a nodule in the right thyroid lobe; a right hemithyroidectomy was performed. Histologic examination documented
granulomatous and lymphocytic thyroiditis associated with a follicular adenoma. No inflammation was apparent within the adenoma.
The parallels between granulomatous thyroiditis and lymphocytic thyroiditis, including presumed viral initiation and deranged