Thyroid Fine Needle Aspiration Biopsy Complicated with Massive Bilateral Hematoma Under Clopidogrel

Ultrasound-guided thyroid FNAB is a safe procedure even under antiplatelet drugs, such as clopidogrel. Although massive hematomas after FNAB are very rare, they may be fatal and must be promptly recognized and treated. Here, we present a well-resolved case of massive bilateral hematoma after ultrasound-guided FNAB using compression and ice.