Answer to Image of the Month January 2015

Submitted by Marjorie Correa and Inchara YK


Accessory tragus

Accessory tragi are a relatively common congenital anomaly. Clinically, they appear as pedunculated or sessile nodules, often labelled as skin tags. They usually occur in the pre-auricular region.

Histologically, they are characterised by a polypoid mass covered by epidermis and containing many vellus hair follicles. Underlying fibroadipose tissue is seen, with a central core of cartilage. The cartilage may, on occasion, be absent. While most accessory tragi are isolated and innocuous, they may be a sign of Goldenhar syndrome (oculo-auriculo-vertebral dysplasia).