<prompt> Not seen in Post-adenoidectomy isVelopharyngeal insufficiencyHyponasalityRetropharyngeal abscessBase of skull fracture  <response>: Complications of adeniodectomy: Haemorrhage Injury to eustachian tube opening Injury to pharyngeal musculature and veebrae Griesel syndrome Velopharyngeal insufficiency Nasopharyngeal stenosis Recurrence Ref: Dhingra 7e pg 491 