[Zuska disease. Diagnosis and treatment in primary care]

A fistula is an abnormal pathological communication which links two organs together or with the exterior. They are fibrous paths internally coated with granulation tissue, extending from an internal o primary opening to one or more openings located outside or on the skin. The recurrent mastitis that some patients suffer is due to a fistula between a lactiferous duct and the limit of the areola, and this condition is called a recurrent periareolar fistula.To incorporate this clinical condition into the proposed terminology, Zuska disease, is essential to believe in its existence, in order to to treat it from the source. The knowledge of this disease, a proper diagnosis and treatment will prevent the constant recurrence of mastitis as presented by these patients, avoiding their pilgrimage to various specialists. In this article we review this disease, methods of diagnosis and treatment.