In allergic pharyngitis, granularity in posterior pharynx is due to
Hyperplasia of mucous membrane
Hyperplasia of sebaceous glands
Hyperplasia of submucosal lymphoid tissue
Inspissated mucous
Pharyngeal signs include granular pharyngitis due to hyperplasia of submucosal lymphoid tissue. A child with perennial allergic rhinitis may show all the features of prolonged mouth breathing as seen in adenoid hyperplasia. Ref: Dhingra 7e pg 188.
Nose and paranasal sinuses