Departamento de Mastologia e Reconstrução Mamária, Hospital de Câncer de Barretos, São Paulo, Brazil.
Departamento de Radiologia e Diagnóstico por Imagem, Hospital de Câncer de Barretos, São Paulo, Brazil.
Breast Dis. 2020;39(2):109-113. doi: 10.3233/BD-190432.
Schwannoma is an extremely rare benign tumour of the peripheral nervous system; its association with breast cancer is sporadic, and its association with the brachial plexus is extremely rare.
The authors report a case of a patient with breast cancer associated with nodulation in the left supraclavicular fossa, and due to the clinical and radiological features, it was considered metastatic lymph node disease. The patient underwent neoadjuvant chemotherapy, with partial response of the breast. Surgical treatment included resection of the supraclavicular nodule, which was found to be a supraclavicular fossa schwannoma. The correct diagnosis, influences the radiotherapeutic planning. The unusual presentation led to diagnostic confusion in the present case, a fact that changed the breast treatment.
The best of our knowledge it is the third description of brachial plexus schwannoma associated with breast cancer and the first with a synchronous association. The knowledge of this pathology and its potential to alter treatment justify the reporting of the present case.
神经鞘瘤是一种极为罕见的外周神经系统良性肿瘤；其与乳腺癌的相关性是散发性的，而与臂丛的相关性则极为罕见。
作者报告了一例乳腺癌患者，其左侧锁骨上窝有结节，由于临床和影像学特征，考虑为转移性淋巴结疾病。患者接受了新辅助化疗，乳房部分缓解。手术治疗包括切除锁骨上结节，发现为锁骨上窝神经鞘瘤。正确的诊断影响放射治疗计划。本例表现不典型，导致诊断混淆，改变了乳房治疗方法。
据我们所知，这是第三例与乳腺癌相关的臂丛神经鞘瘤的描述，也是首例同时性相关的病例。了解这种病理学及其改变治疗的潜力，证明了本病例的报告是合理的。
