Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features

BackgroundMyeloid sarcoma (MS) is a rare hematological malignancy characterized by the formation of a solid mass of myeloblasts outside the bone marrow, such as in the lymph nodes, skin, or bone. MS may arise de novo or concurrently with acute myeloid leukemia (AML), myeloproliferative neoplasm (MPN...

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Main Authors: Li Chun, Zhen Zeng, Qianyu Guo, Yangjun He
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-01-01
Series:Frontiers in Oncology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2023.1268617/full
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author Li Chun
Zhen Zeng
Qianyu Guo
Qianyu Guo
Yangjun He
author_facet Li Chun
Zhen Zeng
Qianyu Guo
Qianyu Guo
Yangjun He
author_sort Li Chun
collection DOAJ
description BackgroundMyeloid sarcoma (MS) is a rare hematological malignancy characterized by the formation of a solid mass of myeloblasts outside the bone marrow, such as in the lymph nodes, skin, or bone. MS may arise de novo or concurrently with acute myeloid leukemia (AML), myeloproliferative neoplasm (MPN), or myelodysplastic syndrome (MDS). MS accounts for less than 1% of extramedullary acute myeloid leukemia cases. Phyllodes tumors (PTs) are a rare fibroepithelial breast tumor that can be benign, malignant, or borderline, and account for less than 1% of all breast cancers.Case presentationWe present a unique case of a 50-year-old woman with both breast MS and borderline PT with malignant features, which presented a diagnostic challenge. The patient initially presented with a mass in her right breast, and the initial fine-needle biopsy revealed the presence of immature myeloperoxidase (MPO)+ myeloid cells consistent with MS. Subsequent pathological analysis of tumor tissues after neoadjuvant radiotherapy and chemotherapy showed a borderline PT with malignant features. Following excision of the tumor, the patient experienced a local recurrence, which was also surgically removed. At 8 months post-surgery, the patient remains free of recurrence under close follow-up.ConclusionThis case highlights the importance of considering the possibility of concurrent malignancies in the differential diagnosis of complex breast masses and underscores the challenges involved in diagnosing and managing such cases. Additionally, we also emphasize the value of neoadjuvant radiotherapy and chemotherapy in MS.
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spelling doaj.art-be677f3009a2463f95f5764c8738bb7a2024-01-19T04:25:14ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2024-01-011310.3389/fonc.2023.12686171268617Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant featuresLi Chun0Zhen Zeng1Qianyu Guo2Qianyu Guo3Yangjun He4Department of Integrative Oncology (Rehabilitation Technology), Sichuan Nursing Vocational College, Chengdu, ChinaDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United StatesRobert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, United StatesDepartment of Breast Surgery, Chengdu Seventh People’s Hospital, Chengdu, ChinaBackgroundMyeloid sarcoma (MS) is a rare hematological malignancy characterized by the formation of a solid mass of myeloblasts outside the bone marrow, such as in the lymph nodes, skin, or bone. MS may arise de novo or concurrently with acute myeloid leukemia (AML), myeloproliferative neoplasm (MPN), or myelodysplastic syndrome (MDS). MS accounts for less than 1% of extramedullary acute myeloid leukemia cases. Phyllodes tumors (PTs) are a rare fibroepithelial breast tumor that can be benign, malignant, or borderline, and account for less than 1% of all breast cancers.Case presentationWe present a unique case of a 50-year-old woman with both breast MS and borderline PT with malignant features, which presented a diagnostic challenge. The patient initially presented with a mass in her right breast, and the initial fine-needle biopsy revealed the presence of immature myeloperoxidase (MPO)+ myeloid cells consistent with MS. Subsequent pathological analysis of tumor tissues after neoadjuvant radiotherapy and chemotherapy showed a borderline PT with malignant features. Following excision of the tumor, the patient experienced a local recurrence, which was also surgically removed. At 8 months post-surgery, the patient remains free of recurrence under close follow-up.ConclusionThis case highlights the importance of considering the possibility of concurrent malignancies in the differential diagnosis of complex breast masses and underscores the challenges involved in diagnosing and managing such cases. Additionally, we also emphasize the value of neoadjuvant radiotherapy and chemotherapy in MS.https://www.frontiersin.org/articles/10.3389/fonc.2023.1268617/fullbreast cancermyeloid sarcoma (MS)borderline phyllodes tumor with malignant featuresneoadjuvant radiotherapyneoadjuvant chemotherapy
spellingShingle Li Chun
Zhen Zeng
Qianyu Guo
Qianyu Guo
Yangjun He
Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
Frontiers in Oncology
breast cancer
myeloid sarcoma (MS)
borderline phyllodes tumor with malignant features
neoadjuvant radiotherapy
neoadjuvant chemotherapy
title Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
title_full Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
title_fullStr Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
title_full_unstemmed Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
title_short Case report: The first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
title_sort case report the first case of concurrent breast myeloid sarcoma and borderline phyllodes tumor with malignant features
topic breast cancer
myeloid sarcoma (MS)
borderline phyllodes tumor with malignant features
neoadjuvant radiotherapy
neoadjuvant chemotherapy
url https://www.frontiersin.org/articles/10.3389/fonc.2023.1268617/full
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