title: Inverted papilloma of the lacrimal sac, the paranasal sinuses and the cervical region.
abstract: A 22-year-old woman presented with a lacrimal sac mass which on biopsy was an inverted papilloma. Two years later an ipsilateral cervical mass was removed, which contained inverted papilloma with a histologically typical pattern. Subsequently, the patient had a medial maxillectomy and remains well 5 years later. The cervical mass may represent inverted papilloma arising in a branchial cleft cyst or it may be a metastasis of benign papilloma to a regional lymph node. This is the second such case reported and the first with substantial followup.
mesh_terms: D000328:Adult; D005134:Eye Neoplasms / Q000473:pathology; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D007765:Lacrimal Apparatus; D010212:Papilloma / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*