title: Intrapancreatic Accessory Spleen: A Diagnosis Not to Forget!
abstract: A 69-year-old male patient was incidentally diagnosed with a 5-mm lesion in the pancreatic tail by endoscopic ultrasound (EUS). After contrast-enhanced EUS and EUS-elastography, all imaging features were highly suggestive of a benign pancreatic solid lesion such as an intrapancreatic accessory spleen (IPAS) or a benign neuroendocrine tumor. Interposition of the splenic artery precluded EUS-guided fine-needle aspiration (FNA). When an asymptomatic pancreatic mass is detected, IPAS diagnosis should be considered, and, if EUS-FNA is infeasible, contrast-enhanced EUS and EUS-elastography are useful tools to differentiate a pancreatic benign lesion as IPAS from a malignancy, with avoidance of unnecessary surgery.
authors.affiliation: Department of Gastroenterology, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal.
authors.forename: Susana
authors.initials: S
authors.lastname: Marques
authors.affiliation: Department of Gastroenterology, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal.
authors.forename: Miguel
authors.initials: M
authors.lastname: Bispo
authors.affiliation: Department of Gastroenterology, Hospital Clínico Universitario Santiago de Compostela, Santiago de Compostela, Spain.
authors.forename: Lariño
authors.initials: L
authors.lastname: Noia
keywords: Endoscopic ultrasonography; Pancreas; Spleen