Journal List > J Korean Assoc Pediatr Surg > v.22(2) > 1071974

J Korean Assoc Pediatr Surg. 2016 Dec;22(2):59-62. Korean.
Published online December 22, 2016.
Copyright © 2016 by the Korean Association of Pediatric Surgeons
A Case of Pediatric Nodal Marginal Zone Lymphoma
Byunghun Min, Joong Kee Youn, Ji-Won Han, Chaeyoun Oh, Hyun-Young Kim, and Sung-Eun Jung
Department of Pediatric Surgery, Seoul National University Children's Hospital, Seoul, Korea.

Correspondence: Hyun-Young Kim, Department of Pediatric Surgery, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea. Tel: +82-2-2072-2478, Fax: +82-2-747-5130, Email:
Received July 21, 2016; Revised October 18, 2016; Accepted October 18, 2016.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Lymph node enlargement is a common finding in children suggesting normal or benign. Palpable nodes which are large, hard or fixed must be examined carefully to rule out malignant diseases. In this case, a 15-year-old boy presented to our hospital to inspect the palpable mass at his post-auricular area being found 2 months ago. It was diagnosed as nodal marginal zone lymphoma (NMZL) through excisional biopsy and immunohistochemistry. NMZL is very rare, especially in children and young adults, but occurs locally in most cases with a good prognosis compared to adults. We described a rare case of NMZL diagnosed in adolescent.

Keywords: Lymphoma; Nodal marginal zone lymphoma; Pediatric; Malignant lymphoma; Lymphadenopathy


Fig. 1
A palpable, fixed 3×2-cm-sized mass positioning at the left posterior auricular area (arrowheads).
Click for larger image

Fig. 2
Ultrasonographic image showing a hypoechoic lobulated mass, with 2.2×2.4×0.8 cm size and inner vascularity (arrowheads).
Click for larger image

Fig. 3
Immunophenotypic features of excised mass. (A) H&E stain (×40) showing a gross lymphoid tissue with effaced normal follicular architectures suggesting neoplastic rather than reactive condition. (B) With a few normal germinal centers left, it was mostly filled with diffusely grown small to medium-sized atypical cells (H&E stain, ×200). These cells were positive in CD20 (B lymphocyte antigen; C) and Bcl-2 (F) but negative in CD10 (D) and Bcl-6 (E) (C-F: ×40).
Click for larger image


CONFLICTS OF INTEREST:No potential conflict of interest relevant to this article was reported.

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