Lymph node extramedullary hematopoiesis in breast cancer patients receiving neoadjuvant chemotherapy combined with immunotherapy: A case report

doi:10.5306/wjco.121496

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World Journal of Clinical Oncology

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2218-4333

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Clin Oncol. Jun 24, 2026; 17(6): 121496
Published online Jun 24, 2026. doi: 10.5306/wjco.121496

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Figure 1 Patient ultrasound and pathological diagnosis images. A: Ultrasonographic image of a breast mass; B: Histopathological image of the breast mass × 20; C: Sonographic image of an enlarged axillary lymph node; D: Histopathological image of an enlarged axillary lymph node × 20.

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Figure 2 Erythroid cells/white blood cell/platelet changes in peripheral blood. A: Erythroid cells; B: White blood cell/platelet. RBC: Red blood cell; Hb: Hemoglobin; MCV: Mean corpuscular volume; RDW: Red cell distribution width; WBC: White blood cell; PLT: Platelet.

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Figure 3 Histopathological and immunohistochemical characteristics of axillary lymph node (× 40). A and B: CD71-positive for erythroid precursors; C and D: Myeloperoxidase positive for myeloid precursors; E and F: CD71-positive for megakaryocytes.

Citation: Xing P, Chen ZG, Jin HL, Luo HR, Gan MF, Huang J. Lymph node extramedullary hematopoiesis in breast cancer patients receiving neoadjuvant chemotherapy combined with immunotherapy: A case report. World J Clin Oncol 2026; 17(6): 121496
URL: https://www.wjgnet.com/2218-4333/full/v17/i6/121496.htm
DOI: https://dx.doi.org/10.5306/wjco.121496

Xing P, Chen ZG, Jin HL, Luo HR, Gan MF, Huang J. Lymph node extramedullary hematopoiesis in breast cancer patients receiving neoadjuvant chemotherapy combined with immunotherapy: A case report. World J Clin Oncol 2026; 17(6): 121496 [DOI: 10.5306/wjco.121496]

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