Open AccessDiagnostic efficacy of smear plus liquid-based cytology for EUS-FNA of solid pancreatic lesions
Author(s) -
Masahiro Itonaga,
Shinichi Murata,
Keiichi Hatamaru,
Takashi Tamura,
Junya Nuta,
Yuki Kawaji,
Takao Maekita,
Mikitaka Iguchi,
Jun Kato,
Fumiyoshi Kojima,
Hiroki Yamaue,
Manabu Kawai,
Ken-ichi Okada,
Seiko Hirono,
Toshio Shimokawa,
Kensuke Tanioka,
Masayuki Kitano
Publication year - 2019
Publication title -
medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 148
eISSN - 1536-5964
pISSN - 0025-7974
DOI - 10.1097/md.0000000000015575
Subject(s) - medicine , cytology , liquid based cytology , radiology , pathology , cancer , cervical cancer
Liquid-based cytology (LBC) is a thin-layer slide preparation procedure that was developed to overcome the cell crowding and contamination associated with smear cytology (SC). The present study compared diagnostic efficacy between SC alone and SC combined with LBC (SLBC) using endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) samples of pancreatic lesions. We retrospectively analyzed data derived from 311 consecutive patients. Specimens obtained via EUS-FNA from 179 patients between December 2011 and May 2016 were analyzed by SC, and those obtained from 132 patients between June 2016 and October 2017 were analyzed by SLBC. The 2 groups were compared in terms of adequate sample rate, diagnostic accuracy, sensitivity, and specificity using propensity score matching. SC and SLBC were compared using propensity score-matching in 204 patients (n = 102 per group). The adequate sample rate did not differ significantly between SLBC (100%) and SC (99.0%, P = 1). Diagnostic sensitivity, negative predictive value and accuracy were better for SLBC than for SC in terms of cytological (93.2% vs 67.4%, 68.4% vs 23.1%, and 94.1% vs 69.6%, P < .01 each, respectively) and cytohistological (95.5% vs 81.5%, 76.5% vs 34.6%, and 96.1% vs 82.4%, P < .01, P = .02, and P < .01, respectively) analyses. SLBC improves the diagnostic efficacy of EUS-FNA for pancreatic lesions compared to LBC.