A case of bilateral congenital sinuses of the nasopharynx.
D005402:Fistula; D006801:Humans; D008223:Lymphoma; D008228:Lymphoma, Non-Hodgkin / Q000209:etiology*; D009305:Nasopharynx / Q000002:abnormalities*
LYMPHOSARCOMA/etiology and pathogenesis; NASOPHARYNX/abnormalities