title: Solid Pseudopapillary Neoplasm of the Pancreas in Young Male Patients: Three Case Reports.
abstract: A preoperative diagnosis of solid pseudopapillary neoplasms (SPNs) in young male patients is difficult to achieve using radiological images. We herein present three cases of young male patients with relatively small SPNs. Endoscopic ultrasound (EUS) showed well-encapsulated, smooth-surfaced, heterogeneous solid lesions in all patients, and all preoperative diagnoses were achieved by EUS-guided fine needle aspiration (EUS-FNA). The final pathological diagnosis after surgery was an SPN with a Ki-67 labeling index of <2%. SPNs should be considered even in young male patients. EUS with EUS-FNA could be a useful diagnostic modality for SPNs even in young male patients.
authors.affiliation: International Medical Department, Kyushu University Hospital, Fukuoka, Japan; Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Aso
authors.affiliation: Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Eikichi
authors.identifier: 0000-0002-7070-6610
authors.initials: E
authors.lastname: Ihara
authors.affiliation: Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Nakamura
authors.affiliation: Endoscopic Therapeutics Department, Kyushu University Hospital, Fukuoka, Japan.
authors.forename: Irina
authors.initials: I
authors.lastname: Sudovykh
authors.affiliation: Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Tetsuhide
authors.initials: T
authors.lastname: Ito
authors.affiliation: Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Nakamura
authors.affiliation: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Ikeda
authors.affiliation: Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Takizawa
authors.affiliation: Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: Yoshinao
authors.initials: Y
authors.lastname: Oda
authors.affiliation: International Medical Department, Kyushu University Hospital, Fukuoka, Japan.
authors.forename: Shuji
authors.initials: S
authors.lastname: Shimizu