Thyroid Papillary Carcinoma and Hyperthyroidism: A Case Study

Abstract

Background: Concurrent thyroid cancer and hyperthyroidism is a rare finding. The frequency of this association is very variable. A rare case of papillary thyroid cancer associated with hyperthyroidism is described here. Case: A 49-year-old male presented to the authors’ outpatient clinic with complaints of a painless left-sided anterior neck swelling that had persisted for the past 8 months. He also reported weight loss for the same duration. The anterolateral swelling was non-tender, asymmetrical, mobile, and rubbery. Investigations: Biochemical analysis confirmed hyperthyroidism. Ultrasound examination of the neck showed a well-defined, solid, and cystic lesion in the left lobe and isthmus of thyroid gland. The solid portion had few specks of calcification. A radioactive thyroid scan showed increased tracer uptake in the left lobe. Papillary carcinoma of thyroid origin was discovered after fine-needle aspiration of the left anterior cervical lymph node. After preparation, a total thyroidectomy was done. Examination of histopathology confirmed papillary thyroid carcinoma. Treatment: Following radioactive thyroid ablation, the patient was started on suppressive doses of thyroxine daily. Conclusion: Although thyroid cancer with hyperthyroidism is a rare finding, it should not be disregarded. To avoid missing this unusual yet uncommon discovery, a detailed history and physical examination should be performed, as well as all required investigations.