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  • Title: Postoperative recurrence from tract seeding after use of EUS-FNA for preoperative diagnosis of cancer in pancreatic tail.
    Author: Sakamoto U, Fukuba N, Ishihara S, Sumi S, Okada M, Sonoyama H, Ohshima N, Moriyama I, Kawashima K, Kinoshita Y.
    Journal: Clin J Gastroenterol; 2018 Jun; 11(3):200-205. PubMed ID: 29392646.
    Abstract:
    A 50-year-old male underwent abdominal computed tomography at a city hospital in Japan, which revealed a tumor 38 mm in diameter in the tail of the pancreas. Based on findings from endoscopic ultrasonography-guided fine needle aspiration using a 22-gauge needle with a side hole, the tumor was diagnosed as an invasive ductal carcinoma. The patient was referred to our hospital and underwent a distal pancreatectomy. Esophagogastroduodenoscopy performed as part of a medical checkup at another hospital 2 years later revealed a 20-mm-sized submucosal tumor in the posterior wall of the upper body of the stomach. Examination of a biopsy specimen obtained from the top of the lesion revealed adenocarcinoma. Partial resection of the stomach was performed and pathological findings showed an adenocarcinoma in all layers of the stomach wall, consistent with recurrence derived from needle tract seeding of the previously excised cancerous tumor from the pancreatic tail. Additional experimentation performed for confirmation with an agar model showed that agar on the deep side leaked to the shallow side following puncture with a needle with a side hole used with a slow-pull technique.
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