Most common cause of retropharyngeal abscess in adults?

Ans. is 'a' i.e., TB Abscess in infants (acute retropharyngeal abscess) Most commonly it results from retropharyngeal lymphadenitis due to an upper respiratory tract infection. Treatment is incision and drainage. Abscess in adults (chronic retropharyngeal abscess) If an adult or an older child has a retropharyngeal infection it is likely to be due to a tuberculous infection of the cervical spine (caries of cervical spine). Sometime it may be secondary to tuberculous infection of retropharyngeal lymph nodes. Treatment includes incision and drainage of abscess along with full course of antitubercular treatment.