Surgical Management of a Rare Complication of Mastoidectomy: A Retroauricular Cutaneous-Mastoid Fistula.

Our goal was to describe a case of a rare complication that developed as a result of multiple surgical interventions over the years due to chronic mastoiditis - specifically, a pathological connection between a retroauricular skin defect and the mastoid cavity - and its surgical management. Based on subjective and objective findings, a surgical intervention was planned, including radical cavity obliteration and closure of the cutaneous-mastoid fistula using the temporomastoid periosteum. The surgery was successfully completed, resulting in improved hearing and the elimination of the infectious focus.