title: Papillary carcinoma of thyroglossal duct cyst.
abstract: BACKGROUND
  Thyroglossal duct cysts are the most common congenital abnormality of thyroid development. They represent the most common midline neck masses in childhood, however, can be found in adults. Less than 1% of these cases are malignant. Our patient was a 28-yr-old man and his chief complaint was a progressively enlarged paramedian neck mass for a duration of 6 months.
  
  
  RESULTS
  We describe the imaging and pathologic characteristics of papillary carcinoma of thyroglossal duct cyst in a 28 years old man and subsequent treatment recommendations. The pathologic examination revealed papillary carcinoma of thyroglossal duct cyst followed by a total thyroidectomy. An axial CT scan of the neck showed a left Paramedian cyst,measuring 15 x 18 mm in the submental region. Neck dissection was done followed by 131I ablation.
  
  
  CONCLUSIONS
  Base upon our past and current experience,we recommend that thyroglossal duct cyst with a microscopic focus of papillary carcinoma without cyst wall invasion be managed with Sistrunk procedure along with effective suppressant dose of thyroxine.
authors.affiliation: Guilan University of Medicine, Department of Otolaryngology and Head and Neck Surgery, Amiralmomenin Hospital, Rasht, Iran. dr_eb_naghavi@yahoo.com
authors.forename: Seyed Ebrahim
authors.initials: SE
authors.lastname: Naghavi
authors.forename: Mir Mohammad
authors.initials: MM
authors.lastname: Jalali
mesh_terms: D000328:Adult; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D013955:Thyroglossal Cyst / Q000473:pathology* / Q000601:surgery