LTH Grade 3: Lymphoid tissue covering entire tongue base, vertical thickness between 5-10 mm, approximately 25-75% of height of epiglottis. November 16, 2016 Print-Friendly Version You Might Also Like No related posts. LTH Grade 3: Lymphoid tissue covering entire tongue base, vertical thickness between 5-10 mm, approximately 25-75% of height of epiglottis.
