Kumagai Hideki, Takehana Kou, Shioi Yoshihiro, Tono Chihiro
Department of General Surgery, Iwate Prefectural Senmaya Hospital, 32-1 Kusaizawa, Ichinoseki, Iwate, 029-0803, Japan.
Surg Case Rep. 2022 Jul 18;8(1):135. doi: 10.1186/s40792-022-01493-8.
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.
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.
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.
与乳腺癌相关的腋窝神经鞘瘤是一种极为罕见的疾病，既往报道有限。在这种情况下，人们非常关注腋窝区域的肿瘤是否为淋巴结转移。在此，我们报告一例独特的腋窝神经鞘瘤病例，其酷似与乳腺癌相关的淋巴结转移。
一名68岁女性，20多年前因右乳腺癌接受了乳房切除术和腋窝淋巴结清扫术，现因右臂麻木和无力6个月就诊于我院。超声、计算机断层扫描和磁共振成像显示右腋窝区域有一个直径20毫米、边界清晰的圆形肿瘤。最初，她被怀疑患有与淋巴结转移相关的乳腺癌，但粗针活检结果为神经鞘瘤。患者接受了肿瘤摘除术。术后1年患者无复发。
腋窝神经鞘瘤在有恶性肿瘤病史的患者中，尤其是乳腺癌患者中，常酷似淋巴结转移。在检查腋窝区域出现肿瘤的癌症患者时，临床医生应通过组织病理学检查尽可能准确地做出诊断，以选择最佳治疗方案。
