Introduction: The thyroideaima artery is an inconstant vessel with a highly variable rate of occurrence and origin. Its course in the superior mediastinum and lower neck is hazardous in median surgical approaches to these areas. Thyroideaima is a rare anomalous artery supplying the thyroid gland apart from the superior and inferior thyroid arteries. Fig. 1: Thyroideaima artery arising from arch of aorta.
Case Report: During routine dissection of embalmed male cadaver approximately 65 yearsold in the department of the Anatomy at Shri Sathya Sai Medical College & Research Institute, Ammapettai, Chennai, this variation was found in thorax region. Thyroideaima artery arising from arch of aorta. Clinical importance: It is of surgical importance in thyroid, parathyroid, tracheal and mediastinal surgeries.
Conclusion: Thyroideaima artery, although a rare arterial variation, a thorough regional anatomic knowledge and meticulous dissection will not only help us in identifying such a vascular variation, also help us in preventing an accidental injury.