A 19-year-old male without any previous symptoms presented as an emergency due to an expanding, right-side, anterior cervical mass 2 h after blunt trauma that he received during a football match. At a brief clinical examination, a soft, solid, nonpulsating tumefaction without external signs of hematoma or fluctuation and localized along the lower projection of the right sternocleidomastoid muscle was diagnosed. The patient experienced hoarseness and difficult swallowing. Urgent contrast- enhanced multislice computed tomography scanning (16-slice MSCT General Electric 'Bright Speed') was performed, revealing a huge cervical mass, 62 x 49 mm in diameter, lying anteriorly to the sternocleidomastoid muscle and close to major vessels, and suspected to be an expanding hematoma (fig. 1a). The carotid artery and internal jugular vein were compressed and a significant deviation of the trachea to the opposite side was visible. Based on these findings, a vascular lesion was suspected, and, due to possible airway compression, an emergency surgical exploration was performed. However, during the exploration, neither vascular injury nor active bleeding was found. A solid, hematoma-like tumefaction in the right thyroid lobe was revealed instead (fig. 1b). Total right thyroid lobectomy was performed because we believed the lobe was affected by the trauma, resulting in a massive hematoma. There were no macroscopic signs of enlarged cervical lymph nodes. After the lobectomy, however, a medial incision of the excised lobe revealed a highly suspicious associated presence of a PTC >4 cm in diameter. Nevertheless, we decided to not perform any other surgery besides the lobectomy, in order to avoid a risk for postoperative permanent recurrent nerve palsy and hypocalcemia in the blood-embedded operative field.