title: [Laboratory diagnosis of gastrinoma. Nordic collaboration can improve the quality].
abstract: Measurement of gastrin in serum or plasma in patients with gastrinoma may be complicated by the presence of circulating biosynthetic intermediates which may not be detected by commonly available immunoassays. In contrast, the "processing-independent analysis" of gastrins developed by professor Jens Rehfeld et al in Copenhagen detects gastrin forms irrespective of their size. The authors review gastrinoma pathophysiology, the biochemistry of gastrin and other biomarkers of gastrinoma, the differential diagnosis of hypergastrinemia as well as other methods currently employed in the workup of gastrinoma patients, and illustrate with a clinical case.
authors.affiliation: Sektionen för laborativ neurovetenskap, Sahlgrenska Universitetssjukhuset/Mölndal.
authors.forename: R
authors.initials: R
authors.lastname: Ekman
authors.forename: P
authors.initials: P
authors.lastname: Fernlund
authors.forename: R
authors.initials: R
authors.lastname: Forberg
authors.forename: A
authors.initials: A
authors.lastname: Isaksson
authors.forename: G
authors.initials: G
authors.lastname: Lindstedt
authors.forename: K
authors.initials: K
authors.lastname: Hellsing
authors.forename: H
authors.initials: H
authors.lastname: Ahlman
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D003937:Diagnosis, Differential; D015408:Gastrinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000378:metabolism / Q000601:surgery; D005755:Gastrins / Q000096:biosynthesis / Q000378:metabolism; D006801:Humans; D007391:International Cooperation; D008297:Male; D008875:Middle Aged; D018761:Multiple Endocrine Neoplasia Type 1 / Q000175:diagnosis* / Q000378:metabolism; D017410:Practice Guidelines as Topic; D011471:Prostatic Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000378:metabolism / Q000601:surgery; D011785:Quality Assurance, Health Care; D011877:Radionuclide Imaging; D012537:Scandinavian and Nordic Countries
chemical_list: D014408:Biomarkers, Tumor; D005755:Gastrins