title: The Disappearance of Lymph Node Metastasis from Neuroendocrine Carcinoma after Endoscopic Ultrasound-guided Fine Needle Aspiration.
abstract: A 75-year-old Japanese man was referred to our hospital to undergo the examination of an enlarged peripancreatic lymph node. Computed tomography (CT) showed a lymph node 47 mm in size that was located above the pancreas head and beneath the liver. Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) of the enlarged lymph node was performed, and an immunohistological examination of the sample confirmed a histological diagnosis of neuroendocrine carcinoma (NEC). The patient refused treatment with chemotherapy and instead chose to undergo observation. However, the lymph node the previously enlarged lymph node was not visible on CT at 12 months after the examination.
authors.affiliation: Department of Endoscopy, Shizuoka Cancer Center, Japan.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Shibata
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Matsubayashi
authors.forename: Akiko
authors.initials: A
authors.lastname: Todaka
authors.forename: Hanako
authors.initials: H
authors.lastname: Kurai
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Tsutsumi
authors.forename: Keiko
authors.initials: K
authors.lastname: Sasaki
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ono
mesh_terms: D000368:Aged; D018278:Carcinoma, Neuroendocrine / Q000473:pathology*; D061765:Endoscopic Ultrasound-Guided Fine Needle Aspiration; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis / Q000473:pathology*; D008297:Male; D014057:Tomography, X-Ray Computed; D057832:Watchful Waiting / Q000379:methods*