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An Ex vivo Culture System to Study Thyroid Development

An Ex vivo Culture System to Study Thyroid Development

Published on: June 6, 2014

Dual ectopy: Unique appearance of ectopic thyroid.

Liam du Preez¹, Francis Flaherty¹, Ragaa Elkabbani²

¹Norwalk Hospital Diagnostic Radiology Residency, 34 Maple St Norwalk, CT 06850 USA.

Radiology Case Reports

|February 23, 2024

Summary

This summary is machine-generated.

This case report details incidental findings of ectopic thyroid tissue in dual locations. Such developmental anomalies highlight the importance of considering embryologic origins in neck lesion diagnosis.

Keywords:

Anatomy Biopsy CT Ectopic Radiology Thyroid

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Area of Science:

Endocrinology
Radiology
Embryology

Background:

Ectopic thyroid tissue can present as a diagnostic challenge, particularly when found in unusual locations.
Differential diagnoses for neck lesions include malignancy, necessitating thorough evaluation.
Understanding embryologic development is crucial for interpreting heterotopic tissue findings.

Observation:

A 67-year-old female presented with acute memory loss, leading to a computed tomography angiogram (CTA) of the head.
Incidental discovery of two lobulated hyperattenuating lesions at the base of the tongue and hyoid bone.
Subsequent imaging and ultrasound-guided biopsy confirmed these lesions as ectopic thyroid tissue, representing dual ectopy.

Findings:

The confirmed ectopic thyroid tissue in separate sites underscores the variability in thyroid development.
Histopathological confirmation via biopsy is essential for accurate diagnosis of heterotopic tissue.
The lesions exhibited hyperattenuating and enhancing characteristics on imaging.

Implications:

This case emphasizes that midline neck lesions, even multiple ones, should be considered potential developmental anomalies of the thyroid.
Radiologists and clinicians must maintain a high index of suspicion for ectopic thyroid tissue in the neck.
Considering embryologic pathways aids in diagnosing rare presentations of heterotopic organs.