title: Thyroglossal duct cyst carcinoma with concurrent thyroid carcinoma: a case report.
abstract: BACKGROUND
  Thyroglossal duct carcinoma is a very rare finding and its presentation is similar to that of a benign cyst, which is a relatively common developmental abnormality that may manifest as a midline, neck mass. In general the diagnosis of thyroglossal duct carcinoma is based on the pathologic examination of the mass, but needle aspiration cytology, ultrasound and computed tomography play a role in the differential diagnosis of malignancy.
  
  
  METHODS
  A further case of thyroglossal duct carcinoma and concurrent thyroid carcinoma with locoregional lymph node metastases affecting a 40-year-old woman followed up for 4 years is presented and discussed.
  
  
  CONCLUSIONS
  Sistrunk's surgical technique must always be the initial treatment, but in case of carcinoma further surgery, that is, thyroidectomy with or without lymph node dissection, and treatment with radioactive iodine have to be considered according to the microscopic and clinical findings. Accurate pre-operative clinical and radiological evaluation should be performed in order to plan surgical strategy.
authors.affiliation: Department of Experimental Oncology and Clinical Applications, University of Palermo, Italy. vittorio.gebbia@tin.it
authors.forename: Vittorio
authors.initials: V
authors.lastname: Gebbia
authors.forename: Carlo
authors.initials: C
authors.lastname: Di Gregorio
authors.forename: Marco
authors.initials: M
authors.lastname: Attard