Fig. 2
From: Thyroid gland hemorrhage after blunt neck trauma: case report and review of the literature
Algorithm for management of thyroid gland injury (based on the algorithm proposed by Heizmann et al.). Classification of Blunt Thyroid Injuries Grade Description of the Lesion by Heizmann: I Small parenchymal lacerations, bleeding into nodules, subcapsular hematoma. II Rupture of the thyroid gland with / without parathyroid hematoma. III Rupture of the thyroid gland with significant neck hematoma including tracheal compression. IV Rupture of the thyroid gland and neck hematoma with associated lacerations to the larynx skeleton and/or to carotid and jugular vessels