title: Rare condition of needle tract seeding after EUS-guided FNA for intraductal papillary mucinous carcinoma.
abstract: We report on a 75-year-old man who was admitted due to pancreatic cystic lesion accompanied by a solid mass with liver metastasis. Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) was performed on the solid mass, and pathological findings revealed the lesion to be an adenocarcinoma diagnosed as intraductal papillary mucinous carcinoma (IPMC). Approximately 3 months after, a cystic subepithelial lesion appeared in the posterior gastric wall where the EUS-FNA had been performed. We performed EUS-FNA again, which revealed that the cystic mass was IPMC with pathology similar to the original lesion. This is a rare case demonstrating needle tract seeding of EUS-FNA for IPMC.
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Akane
authors.initials: A
authors.lastname: Yamabe
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Irisawa
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Goro
authors.initials: G
authors.lastname: Shibukawa
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Koki
authors.initials: K
authors.lastname: Hoshi
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Mariko
authors.initials: M
authors.lastname: Fujisawa
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Igarashi
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Ai
authors.initials: A
authors.lastname: Sato
authors.affiliation: Department of Gastroenterology. Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Takumi
authors.initials: T
authors.lastname: Maki
authors.affiliation: Department of Pathology, Fukushima Medical University Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Hojo