Oncocytic Papillary Carcinoma in an Autonomous Thyroid Nodule

Area of Science:

• Endocrinology
• Oncology
• Surgical Pathology

Background:

• Thyroid nodules are common, often benign, but malignancy risk exists.
• Malignancy is rare in autonomous thyroid nodules, unlike nonfunctioning ones.
• Current guidelines may not recommend biopsy for autonomous nodules.

Observation:

• A woman in her early 30s presented with an enlarging neck mass and thyrotoxicosis.
• Ultrasound revealed a unilateral thyroid mass with increased uptake on scintigraphy.
• Initial thyroid lobectomy led to intraoperative diagnosis of papillary thyroid carcinoma.

Findings:

• Papillary thyroid carcinoma, though rare, can occur in autonomous nodules.
• The oncocytic subtype, seen in this case, carries a higher recurrence risk.
• Total thyroidectomy was performed, with low likelihood of recurrence.

Implications:

• Patients with autonomous thyroid nodules should be evaluated for potential malignancy.
• Early diagnosis and surgical intervention are key for curative treatment of thyroid cancer.
• Thyroidectomy is generally curative for papillary thyroid carcinoma.