Purpose or Case Report: Pediatric thyroid carcinoma (PTC) is associated with higher rates of regional and lung metastases and a greater recurrence rate, though it maintains an excellent overall prognosis. While the diffuse sclerosing variant of PTC (DSV-PTC) is a rare subtype, it is disproportionately observed in the pediatric population. Ultrasound findings of DSV-PTC can include a thyroid nodule or diffuse thyroid enlargement, heterogeneous hypoechogenicity, and diffuse microcalcifications. It often presents with extensive cervical lymph node metastasis and more advanced disease at the time of diagnosis, which is linked to a higher recurrence risk. However, a comprehensive description of the sonographic features of DSV-PTC within a large pediatric cohort is currently lacking. This exhibit aims to address the current knowledge gap by illustrating the spectrum of sonographic findings for DSV-PTC in a pediatric population and describing its common associated imaging features.
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