Nasal mastocytosis.
D000293:Adolescent; D001485:Basement Membrane / Q000473:pathology; D001706:Biopsy; D004804:Eosinophils; D006801:Humans; D008407:Mast Cells; D009092:Mucous Membrane / Q000473:pathology; D009666:Nose / Q000473:pathology; D006255:Rhinitis, Allergic, Seasonal / Q000209:etiology*; D014582:Urticaria Pigmentosa / Q000150:complications* / Q000473:pathology