Sections of the nasopharyngeal tonsil demonstrate hyperplasia of the mucosa-associated lymphoid tissue, which retains active and intact germinal centers with prominent tingible body macrophages. The interfollicular areas are richly infiltrated by a polymorphic population of mature lymphocytes and plasma cells. The surface and reticular crypt epithelium exhibits widespread, benign squamous metaplasia. This altered epithelial lining is associated with hyperkeratosis, resulting in the formation of large, expanded crypts filled with dense, lamellated sheets of eosinophilic keratin debris. Focal microcalcification is noted. There is no evidence of specific granulomas, epithelial atypia, architectural distortion, or malignancy.
Adenoid hypertrophy obstructing nose posteriorly.
Soft tissue mass measuring 3 x 2.5 x 1 cm, totally embedded.
Nasopharyngeal mass, excisional biopsy: