Open Access
CC BY-NC-ND 4.0 · Endosc Int Open 2021; 09(01): E96-E101
DOI: 10.1055/a-1287-9577
Original article

Usefulness of endoscopic ultrasound-guided fine needle aspiration for splenic parenchyma in patients suspected of having primary splenic malignant lymphoma

Authors

  • Fumitaka Niiya

    1   Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Yuichi Takano

    1   Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Tetsushi Azami

    1   Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Takahiro Kobayashi

    1   Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Naotaka Maruoka

    1   Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Nobuyuki Kabasawa

    2   Department of Hematology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Hiroshi Harada

    2   Department of Hematology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
  • Tomoko Norose

    3   Department of Diagnostic Pathology, Showa University Fujigaoka Hospital, Yokohama, Kanagawa Japan
  • Nobuyuki Ohike

    3   Department of Diagnostic Pathology, Showa University Fujigaoka Hospital, Yokohama, Kanagawa Japan
  • Masatsugu Nagahama

    1   Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan

Abstract

Background and study aims The diagnosis of malignant lymphoma (ML) is sometimes difficult, especially in patients with primary splenic malignant lymphomas (psML) which have no lymph nodes capable of acting as the biopsy target. We carried out endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for “splenic parenchyma” in patients suspected of having a psML, even without any obvious neoplastic lesions in the spleen.

Patients and methods A retrospective study using medical records was conducted of eight patients suspected of having a psML that received EUS-FNA for the splenic parenchyma between January 2016 and January 2019. Data analyzed included clinical background, EUS-FNA procedure (puncture needle/route), diagnostic ability (pathological/flow cytometry [FCM]), and complications.

Results EUS-FNA was performed from the stomach in all eight cases, and no patients had complications. As a result of splenic parenchymal biopsy found on EUS-FNA, 75 % of patients (6/8) were histologically diagnosed with MLs, monoclonality of B-cells was identified in all cases (8/8) with FCM, and all patients (8/8) were definitively diagnosed with psMLs.

Conclusion EUS-FNA for “splenic parenchyma” is useful for patients with spML, even if they have no obvious neoplastic lesions in the spleen.



Publication History

Received: 02 June 2020

Accepted: 18 August 2020

Article published online:
01 January 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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