Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report

Abstract Background Axillary schwannoma associated with breast cancer is an extremely rare disease, and previous reports have been limited. In this setting, there is great concern about whether a tumor in the axillary region is lymph node metastasis. Herein, we report a unique case of axillary schwa...

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Main Authors: Hideki Kumagai, Kou Takehana, Yoshihiro Shioi, Chihiro Tono
Format: Article
Language:English
Published: Japan Surgical Society 2022-07-01
Series:Surgical Case Reports
Subjects:
Online Access:https://doi.org/10.1186/s40792-022-01493-8
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author Hideki Kumagai
Kou Takehana
Yoshihiro Shioi
Chihiro Tono
author_facet Hideki Kumagai
Kou Takehana
Yoshihiro Shioi
Chihiro Tono
author_sort Hideki Kumagai
collection DOAJ
description Abstract Background Axillary schwannoma associated with breast cancer is an extremely rare disease, and previous reports have been limited. In this setting, there is great concern about whether a tumor in the axillary region is lymph node metastasis. Herein, we report a unique case of axillary schwannoma that mimicked lymph node metastasis associated with breast cancer. Case presentation A 68-year-old woman who underwent mastectomy and axillary lymph node dissection for right breast cancer over 20 years ago presented to our hospital with numbness and weakness in the right arm for 6 months. Ultrasonography, computed tomography, and magnetic resonance imaging showed a 20-mm well-circumscribed round tumor in the right axillary region. Initially, she was suspected of having lymph node metastasis-associated breast cancer, but the result of the core needle biopsy was a schwannoma. The patient underwent tumor enucleation. The patient has had no recurrence 1 year after the operation. Conclusion Axillary schwannomas often mimic lymph node metastasis in patients with a history of malignancy, particularly breast cancer. To select the optimal treatment, the clinicians should make as accurately as possible a diagnosis, with histopathological examinations, when examining patients with cancer who develop tumors in the axillary region.
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spelling doaj-art-637645ca9b3246fd985eb6aff75578042025-08-20T03:34:36ZengJapan Surgical SocietySurgical Case Reports2198-77932022-07-01811410.1186/s40792-022-01493-8Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case reportHideki Kumagai0Kou Takehana1Yoshihiro Shioi2Chihiro Tono3Department of General Surgery, Iwate Prefectural Senmaya HospitalDepartment of General Surgery, Iwate Prefectural Senmaya HospitalDepartment of General Surgery, Iwate Prefectural Senmaya HospitalDepartment of General Surgery, Iwate Prefectural Senmaya HospitalAbstract Background Axillary schwannoma associated with breast cancer is an extremely rare disease, and previous reports have been limited. In this setting, there is great concern about whether a tumor in the axillary region is lymph node metastasis. Herein, we report a unique case of axillary schwannoma that mimicked lymph node metastasis associated with breast cancer. Case presentation A 68-year-old woman who underwent mastectomy and axillary lymph node dissection for right breast cancer over 20 years ago presented to our hospital with numbness and weakness in the right arm for 6 months. Ultrasonography, computed tomography, and magnetic resonance imaging showed a 20-mm well-circumscribed round tumor in the right axillary region. Initially, she was suspected of having lymph node metastasis-associated breast cancer, but the result of the core needle biopsy was a schwannoma. The patient underwent tumor enucleation. The patient has had no recurrence 1 year after the operation. Conclusion Axillary schwannomas often mimic lymph node metastasis in patients with a history of malignancy, particularly breast cancer. To select the optimal treatment, the clinicians should make as accurately as possible a diagnosis, with histopathological examinations, when examining patients with cancer who develop tumors in the axillary region.https://doi.org/10.1186/s40792-022-01493-8Axillary schwannomaBreast cancerLymph node metastasis
spellingShingle Hideki Kumagai
Kou Takehana
Yoshihiro Shioi
Chihiro Tono
Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report
Surgical Case Reports
Axillary schwannoma
Breast cancer
Lymph node metastasis
title Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report
title_full Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report
title_fullStr Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report
title_full_unstemmed Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report
title_short Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report
title_sort axillary schwannoma mimicking lymph node metastasis associated breast cancer a case report
topic Axillary schwannoma
Breast cancer
Lymph node metastasis
url https://doi.org/10.1186/s40792-022-01493-8
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AT yoshihiroshioi axillaryschwannomamimickinglymphnodemetastasisassociatedbreastcanceracasereport
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