Third Branchial Cleft Cyst

  • Etiology: remnant of embryonal branchial arch incompletely obliterated, courses from hypopharynx to supraclavicular region in upper posterior cervical space
  • Imaging: look in posterior triangle, mandibular angle, mediastinum
  • Clinical: 2% of branchial cleft cysts, presents with thymic cyst

Cases of Third Branchial Cleft Cyst