Does large tissue amount by endoscopic ultrasound-guided fine needle biopsy affect efficacy of diagnosing type I autoimmune pancreatitis?

[...]due to retrospective nature of study, no uniformity of tissue acquisition was followed in all these centers. [...]two different types of needles (Franssen and Endcutting) with various needle diameters of 22 ga, 19 ga and 20 ga were used and possibly multiple endoscopists involved at different c...

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Bibliographic Details
Published in:Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] 2021-01, Vol.21 (1), p.320-321
Main Authors: Nayak, Hemanta Kumar, Chouhan, Mohd. Imran, Mohindra, Samir
Format: Article
Language:English
Subjects:
Biopsy
Endoscopy
Immunoglobulin G
Medical diagnosis
Pancreatitis
Ultrasonic imaging
Ultrasound
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Summary:[...]due to retrospective nature of study, no uniformity of tissue acquisition was followed in all these centers. [...]two different types of needles (Franssen and Endcutting) with various needle diameters of 22 ga, 19 ga and 20 ga were used and possibly multiple endoscopists involved at different center with wide ranges of passes (1–14). [...]larger amounts of tissue contribute to the accurate evaluation of IgG4-positive cells by immunostaining. [...]this retrospective study described EUS-FNB with a large amount of tissue as useful for diagnosing type 1 AIP, notably by facilitating successful immuno-staining for IgG4.
ISSN:1424-3903
1424-3911
DOI:10.1016/j.pan.2020.11.019