LTH Grade 4: Lymphoid tissue covering entire tongue base, vertical thickness approximately 1 cm, rises above tip of epiglottis.

LTH Grade 4: Lymphoid tissue covering entire tongue base, vertical thickness approximately 1 cm, rises above tip of epiglottis.

LTH Grade 4: Lymphoid tissue covering entire tongue base, vertical thickness approximately 1 cm, rises above tip of epiglottis.

ENTtoday - https://www.enttoday.org/article/hypopharyngeal-approaches-obstructive-sleep-apnea/ent_1116_pg12f/