A developmental variant of the thyroid cartilage.

Neck sonography is commonly used as the first imaging method for acute and chronic neck pain or swelling. Adequate knowledge of normal sonography findings is needed for optimal patient work-up. Although thyroid cartilage is rarely sonographically analyzed, there are anatomical variants detectable with sonography. These variants should not be confused with pathologies. Our case report is focused on cyst-like lesions of the thyroid cartilage, which are uncommon incidental findings when imaging is performed. The aim of this case report is to illustrate the ultrasound and magnetic resonance imaging appearances of these cyst-like formations. These formations are benign, have no clinical significance and do not require any additional assessment. Neck sonography is commonly used as the first imaging method for acute and chronic neck pain or swelling. Adequate knowledge of normal sonography findings is needed for optimal patient work-up. Although thyroid cartilage is rarely sonographically analyzed, there are anatomical variants detectable with sonography. These variants should not be confused with pathologies. Our case report is focused on cyst-like lesions of the thyroid cartilage, which are uncommon incidental findings when imaging is performed. The aim of this case report is to illustrate the ultrasound and magnetic resonance imaging appearances of these cyst-like formations. These formations are benign, have no clinical significance and do not require any additional assessment.