2. مرکز تحقیقات گوش، گلو،بینی، جراحی سروگردن دانشگاه علوم پزشکی مشهد

8.  Veins  Regional plexuses veins & Jugular vein  Lymph  Deep Neck lymph nodes  Nerve  Glossopharyngeal nerve & Vagus

9.  Artery  Pharyngeal artery Ascendant Pharyngeal a. &Facial artery  Lymph  Retropharyngeal Nodes  Nerves  Glossopharyngeal nerve

10. Recurrent Infection of tonsils ( 7 attack In year, 5 attack every Year for 2years, or 3 attack in 3 years) Tonsillitis & Seizure Quinsy Abscess Carrier of Diphtheria Malignancy Sleep Apnea Malocclusion Sever hypertrophy of A/T that compromise airway & deglutition

11.  Recurrent disease of middle ear  Large adenoids with obstruction of airway  Recurrent sinusitis (Ethmoiditis)  Malocclusion (open bite or cross bite)

13.  Obvious or occult cleft palate  Acute infection in pharynx&tonsils  Under 3 years old  Hb less than 10 & Ht less than 30  Allergy  Epidemic Polio