Commonly forgotten complication of Hashimoto's thyroiditis

Area of Science:

• Endocrinology
• Oncology

Background:

• Hashimoto's thyroiditis is a common autoimmune thyroid condition.
• Management typically involves thyroxine supplementation.
• Thyroid lymphoma is a rare but serious complication.

Observation:

• A 61-year-old woman with Hashimoto's thyroiditis presented with an enlarged goiter and compressive symptoms.
• Despite stable thyroxine treatment, she experienced constitutional symptoms, including weight loss.
• Further investigations led to the diagnosis of diffuse large B-cell lymphoma.

Findings:

• The patient was treated with chemotherapy and adjuvant radiotherapy.
• She achieved remission one year post-treatment.
• This case highlights the importance of considering thyroid lymphoma in HT patients.

Implications:

• An increased index of suspicion for primary thyroid lymphoma is warranted in patients with Hashimoto's thyroiditis.
• Early diagnosis and prompt treatment can lead to improved patient outcomes.
• This underscores the need for vigilance in managing HT patients for rare but severe complications.