Maxilloethmoidal polyposis: a dystrophy of the retropharyngeal lymphatic system.
D005005:Ethmoid Sinus; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008443:Maxillary Sinus; D010255:Paranasal Sinus Neoplasms; D011127:Polyps