Axillary sparganosis, changes in ultrasound images over six months: A case report.

Sparganosis is an infestation caused by a tapeworm belonging to the genus Spirometra. The typical radiologic findings of sparganosis describe elongated, folded, band or tubular, hypoechoic structures with surrounding increased echogenicity in ultrasonography. These imaging features have been highly consistent with pathology results.

Thyroid cyst mirror artifact mimicking a tracheal cyst on ultrasound in a patient with excessive trachea collapsibility.

Mirror image artifact in ultrasound is not an unusual phenomenon. However, it is rarely seen in thyroid ultrasound because of the natural convexity of the tracheal surface. We report a mirror artifact during thyroid ultrasound in a patient with an excessively collapsible trachea.