<prompt> Tornwaldt cyst isLaryngeal cystNasopharyngeal cystEar cystNone  <response>: Thornwaldts disease or Pharyngeal bursitis is an infection of pharyngeal bursa located in the midline of the posterior wall of the nasopharynx. Ref: Textbook of ENT, Dhingra; 6th edition; Pg no: 245 ref img 