12 November 2020
: Case report
IgG4-Related Fibrous Thyroiditis (Riedel’s Thyroiditis): A Case Report
Challenging differential diagnosis, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Valeria Navarro-Sánchez1BEF, Luis Antonio Marín-Castañeda1BEF, Cecilia A. Gallegos2BDF, Oscar Quiroz3BCD, Miguel Ahumada-Ayala14BDEF*DOI: 10.12659/AJCR.928046
Am J Case Rep 2020; 21:e928046
Figure 1. Doppler ultrasound of the thyroid gland. (A) Diffuse, nonvascular enlargement of both thyroid lobules can be seen with discrete pseudonodule structures. (B) Strain elastography demonstrates a severe diffuse increase in thyroid tissue rigidity (mean 4.99, reference value 1).