title: Metastasizing neuroendocrine tumor of unknown origin found in cervical lymph nodes: a case report.
abstract: Neuroendocrine tumors are a diverse category of tumors that have been known to produce biologically active amines and ectopic hormones of various types. Numerous metastasizing primary lesions have been identified, however, the head and neck region is not a common site for them. Even less common than these are head and neck metastatic sites without an identifiable primary lesion. We report a case of a metastatic neuroendocrine tumor, where the primary site eluded detection despite an extensive battery of investigations.
authors.affiliation: Department of Otolaryngology, Mount Sinai Hospital, University of Toronto, Ontario, Canada.
authors.forename: A V
authors.initials: AV
authors.lastname: Chuma
authors.forename: Y C
authors.initials: YC
authors.lastname: Bedard
authors.forename: J L
authors.initials: JL
authors.lastname: Freeman
mesh_terms: D000328:Adult; D001079:Apudoma / Q000473:pathology / Q000556:secondary*; D006258:Head and Neck Neoplasms / Q000473:pathology / Q000556:secondary; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D009382:Neoplasms, Unknown Primary