An unusual thyroglossal duct anomaly characterized by a branched tract terminating in two separate cysts is described. The patient presented with a long-standing fistula following previous incomplete excision.
Thyroglossal cysts are common congenital anomalies (Moussatos and Baffes, 1963; Allard, 1982), which do not usually present any diagnostic difficulty. However, they may sometimes present with unusual clinico-pathological features. In this report we describe a branching and polycystic thyroglossal duct abnormality occurring in a young woman with a history of previous surgery for a midline cervical mass.