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Adenomatous Hyperplastic Thyroid Nodule

Case Detail

Anatomy: Neck-Face
Joseph Junewick, MD FACR
Diagnostic Category: Neoplasia Benign
Created: over 6 years ago
Updated: over 6 years ago
Tags: PEDS
Modality/Study Types: US
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16 year old female with neck mass; maternal history of Hashimoto’s thyroiditis.

Case Images


Adenomatous Hyperplastic Thyroid Nodule

Clinical Notes

Pathology – Adenomatous hyperplastic thyroid nodule on a background of chronic lymphocytic inflammation (Hashimoto’s thyroiditis).


US – Solid and cystic mass in the right lobe of the thyroid which is hyperemic on Doppler.


Adenomatous hyperplastic thyroid nodules differ from true thyroid adenomas since they do not have a complete fibrous capsule and they are often multiple. Both thyroid adenomas and adenomatous hyperplastic nodules are well-circumscribed and slow growing; central necrosis is often encountered with increase in size. Lesions may contain coarse calcification. Adenopathy is usually absent.

Differential diagnosis includes colloid cyst, parathyroid adenoma, thyroid carcinoma.


Kim EK, et al. New Sonographic Criteria for Recommending Fine-needle Biopsy of Nonpalpable Solitary Nodules of the Thyroid. AJR 2002; 178(3):687-691.


Matt Ripplinger, MD (PG4, Diagnostic Radiology)

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