title: Occipital Headache as Initial Manifestation of a Pancreatic Neuroendocrine Tumor.
authors.affiliation: Department of Oncology, "401" General Military Hospital of Athens, 138 Mesogeion Avenue and Katechaki Avenue, GR11525, Athens, Greece. tsoukn@yahoo.gr.|Department of Medical Oncology, "Agios Savvas" Anticancer Hospital, 171 Alexandras Avenue, GR11522, Athens, Greece. tsoukn@yahoo.gr.
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Tsoukalas
authors.affiliation: Department of Oncology, "401" General Military Hospital of Athens, 138 Mesogeion Avenue and Katechaki Avenue, GR11525, Athens, Greece.
authors.forename: Agathangelos
authors.initials: A
authors.lastname: Triantafyllidis
authors.affiliation: Department of Oncology, "401" General Military Hospital of Athens, 138 Mesogeion Avenue and Katechaki Avenue, GR11525, Athens, Greece.
authors.forename: Maria
authors.initials: M
authors.lastname: Tolia
authors.affiliation: Neuroendocrine Tumour Unit, Center of Gastroenterology, Royal Free Hospital NHS Foundation Trust, London, NW3 2QG, UK.
authors.forename: Michail
authors.identifier: http://orcid.org/0000-0002-7544-2810
authors.initials: M
authors.lastname: Galanopoulos
authors.affiliation: Department of Oncology, "401" General Military Hospital of Athens, 138 Mesogeion Avenue and Katechaki Avenue, GR11525, Athens, Greece.
authors.forename: Ioannis D
authors.initials: ID
authors.lastname: Kostakis
authors.affiliation: Department of Medical Oncology, "Agios Savvas" Anticancer Hospital, 171 Alexandras Avenue, GR11522, Athens, Greece.
authors.forename: Stamatina
authors.initials: S
authors.lastname: Demiri
authors.affiliation: Neuroendocrine Tumour Unit, Center of Gastroenterology, Royal Free Hospital NHS Foundation Trust, London, NW3 2QG, UK.
authors.forename: Christos
authors.initials: C
authors.lastname: Toumpanakis
authors.affiliation: Department of Medical Oncology, "Agios Savvas" Anticancer Hospital, 171 Alexandras Avenue, GR11522, Athens, Greece.
authors.forename: Georgios
authors.initials: G
authors.lastname: Koumakis
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002528:Cerebellar Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000556:secondary / Q000628:therapy; D002531:Cerebellum / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D018450:Disease Progression; D017809:Fatal Outcome; D006261:Headache / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007414:Intestinal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000556:secondary / Q000628:therapy; D008279:Magnetic Resonance Imaging; D008297:Male; D018358:Neuroendocrine Tumors / Q000150:complications / Q000175:diagnosis* / Q000556:secondary / Q000628:therapy; D010190:Pancreatic Neoplasms / Q000150:complications / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology* / Q000556:secondary / Q000628:therapy; D013274:Stomach Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000556:secondary / Q000628:therapy