title: Endoscopic ultrasound-guided tissue sampling: How can we improve the results?
abstract: Endoscopic ultrasound (EUS) enables a gastroenterologist to sample the masses of the middle and inferior mediastinum, which are adjacent to the esophagus; cystic or solid lesions of the pancreas, which are adjacent to the stomach and duodenum; and perirectal lesions. Needles used for EUS sampling include aspiration (19, 20, and 22 Gauge) or core biopsy needles (ProCore and Trucut) (19, 20, and 22 Gauge). The type and size of EUS needles do not alter the diagnostic results. Rapid on-site cytopathological evaluation will increase the diagnostic efficacy to 100% without prolonging the procedure time. Diagnostic efficacy of EUS-guided fine-needle aspiration or core biopsy depends on the experience of an endoscopist and a cytopathologist. In the presence of an experienced endoscopist and cytopathologist, the size of the needle does not have any significant impact on the diagnostic success.
authors.affiliation: Department of Gastroenterology, Katip Çelebi University, İzmir Atatürk Training and Research Hospital, İzmir, Turkey. mahmutarabul@gmail.com.
authors.forename: Emrah
authors.initials: E
authors.lastname: Alper
authors.forename: İrem
authors.initials: İ
authors.lastname: Onur
authors.forename: Mahmut
authors.initials: M
authors.lastname: Arabul
authors.forename: Belkıs
authors.initials: B
authors.lastname: Ünsal
mesh_terms: D061765:Endoscopic Ultrasound-Guided Fine Needle Aspiration / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D006801:Humans; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D009339:Needles; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D012680:Sensitivity and Specificity