A Rare Case of Traumatic Thyroid Gland Hypoperfusion/Devascularization After a Gunshot Wound Through the Neck: Computed Tomography Findings.

BACKGROUND The thyroid gland is rarely injured in cases of penetrating neck trauma. Computed tomography (CT) plays a central role in prompt evaluation of the extent of penetrating neck trauma and can demonstrate thyroid gland injury. The current literature on thyroid gland injury is limited mostly to blunt trauma, with little emphasis on findings seen on CT imaging. In the present case report, we focus on CT imaging findings of thyroid gland hypoperfusion/devascularization in a patient who had a gunshot wound injury through the base of his neck. CASE REPORT A 26-year-old man was transferred to our trauma center after experiencing multiple gunshot wounds, including one through the base of the neck. The bullet path through his neck was associated with enlargement/edema involving the right thyroid lobe, with an asymmetric decrease in enhancement involving the mid and superior aspects of the right thyroid lobe. Maximum-intensity-projection angiographic images of the vascular supply of the thyroid gland suggested an abrupt decrease in caliber close to the origin of the posterior glandular branch of the right superior thyroid artery. The findings favored vasospasm rather than an arterial injury, which led to hypoperfusion/devascularization of the upper pole of the right thyroid lobe. CONCLUSIONS Thyroid gland hypoperfusion/devascularization after a penetrating neck injury is rare. Recognition of CT imaging findings that favor post-traumatic organ hypoperfusion/devascularization is crucial for prompt management and to decrease morbidity in such cases.