title: Intra-pancreatic Accessory Spleen Mimicking Pancreatic Neuroendocrine Tumor on 68-Ga-Dotatate PET/CT.
abstract: Neuroendocrine tumors (NETs) are rare tumors, but the incidence is increasing with new diagnostics. A 37-year-old man was admitted to our hospital for an incidental 17-mm nodule in the tail of the pancreas. PET/CT shows indeterminate mass in the pancreatic tail with enhanced uptake of 68-Ga-dotatate. NET was suspected and laparoscopic distal pancreatectomy was performed. Pathologic examination revealed an accessory spleen with a heterotopic location. To the best of our knowledge, this is the first intrapancreatic accessory spleen (IPAS) case in which the positive 68-Ga-dotatate uptake reported in the literature. Our case showed that IPAS is one of the reasons of false positive involvement of 68-Ga-dotatate PET/CT. When PET/CT shows an indeterminate mass in the pancreatic tail with enhanced uptake of 68-Ga-dotatate, surgeons should keep IPAS in their mind for differential diagnosis to avoid false treatment.
authors.affiliation: Department of Gastroenterological Surgery, Turkiye Yuksek Ihtisas Teaching and Research Hospital, Ankara, Turkey.
authors.forename: Erdal Birol
authors.initials: EB
authors.lastname: Bostancı
authors.affiliation: Department of Gastroenterological Surgery, Turkiye Yuksek Ihtisas Teaching and Research Hospital, Ankara, Turkey.
authors.forename: Volkan
authors.initials: V
authors.lastname: Oter
authors.affiliation: Department of Radiology, Turkiye Yuksek Ihtisas Teaching and Research Hospital, Ankara, Turkey.
authors.forename: Sarper
authors.initials: S
authors.lastname: Okten
authors.affiliation: Department of Nuclear Medicine, Ankara University Medical Faculty, Ankara, Turkey.
authors.forename: Nuriye Ozlem
authors.initials: NO
authors.lastname: Küçük
authors.affiliation: Department of Nuclear Medicine, Ankara University Medical Faculty, Ankara, Turkey.
authors.forename: Cigdem
authors.initials: C
authors.lastname: Soydal
authors.affiliation: Department of Pathology, Turkiye Yuksek Ihtisas Teaching and Research Hospital, Ankara, Turkey.
authors.forename: Nesrin
authors.initials: N
authors.lastname: Turhan
authors.affiliation: Department of Gastroenterological Surgery, Turkiye Yuksek Ihtisas Teaching and Research Hospital, Ankara, Turkey.
authors.forename: Musa
authors.initials: M
authors.lastname: Akoglu
mesh_terms: D000328:Adult; D002828:Choristoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D018358:Neuroendocrine Tumors / Q000175:diagnosis; D009942:Organometallic Compounds; D010180:Pancreatectomy; D010182:Pancreatic Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D000072078:Positron Emission Tomography Computed Tomography; D013154:Spleen; D014463:Ultrasonography
chemical_list: D009942:Organometallic Compounds; C513399:gallium Ga 68 dotatate