title: Suture granuloma with false-positive finding on PET/CT after gastrectomy for gastric cancer.
abstract: This study is a case report on a 49-year-old woman who had a gastrectomy and lymphadenectomy for pStage IIIa gastric cancer. Shortly after a 12-month course of adjuvant chemotherapy, CT showed a nodule adjacent to the gallbladder. High (18) F-fluorodeoxyglucose accumulation was detected, with a standardized uptake value of 10. Therefore, laparoscopic excision was performed for diagnosis and treatment. The histopathological finding was suture granuloma. Suture granulomas with high standardized uptake values on PET scans are uncommon and often cause surgeons to provide an inaccurate diagnosis. Our study suggests that suture granuloma should be included in the differential diagnosis of a new or recurrent mass detected in patients with a history of prior surgery; however, surgeons must bear in mind that false-positive fluorodeoxyglucose-PET results can be observed in suture granuloma.
authors.affiliation: Department of Hepato-Biliary-Pancreatic Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Tsujita
authors.affiliation: Department of Hepato-Biliary-Pancreatic Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Ikeda
authors.affiliation: Department of Hepato-Biliary-Pancreatic Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Nao
authors.initials: N
authors.lastname: Kinjo
authors.affiliation: Department of Hepato-Biliary-Pancreatic Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Yo-Ichi
authors.initials: Y
authors.lastname: Yamashita
authors.affiliation: Department of Pathology, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Reiko
authors.initials: R
authors.lastname: Kumagai
authors.affiliation: Department of Pathology, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Taguchi
authors.affiliation: Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Shohei
authors.initials: S
authors.lastname: Yamaguchi
authors.affiliation: Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Kazuhito
authors.initials: K
authors.lastname: Minami
authors.affiliation: Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Manabu
authors.initials: M
authors.lastname: Yamamoto
authors.affiliation: Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Masaru
authors.initials: M
authors.lastname: Morita
authors.affiliation: Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Toh
authors.affiliation: Department of Gastroenterological Surgery, National Kyushu Cancer Center, Fukuoka, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Okamura
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000601:surgery*; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D005743:Gastrectomy; D015745:Granuloma, Foreign-Body / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D064847:Multimodal Imaging; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D049268:Positron-Emission Tomography; D011183:Postoperative Complications / Q000175:diagnosis*; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000601:surgery*; D013537:Sutures; D014057:Tomography, X-Ray Computed
keywords: False-positive PET; gastric cancer; suture granuloma