Kotrri Enxhi, Jonker Derek, Auer Rebecca, Locke Gordon
Faculty of Medicine, University of Ottawa, Ottawa, CAN.
Division of Medical Oncology, University of Ottawa, The Ottawa Hospital, Ottawa, CAN.
Cureus. 2022 Dec 29;14(12):e33096. doi: 10.7759/cureus.33096. eCollection 2022 Dec.
Schwannomas are rare benign tumors that are often asymptomatic and identified incidentally on imaging studies undertaken for another purpose. Schwannomas arising from the vestibular nerve are the most common site of identification; however, schwannomas can arise extracranially in any peripheral nerve tissue. Here, we present a case study of a patient with a localized rectal adenocarcinoma who was found to have a retroperitoneal schwannoma initially felt to be a lymph node metastasis of his rectal cancer. The diagnosis of schwannoma was confirmed via biopsy, which resulted in changes to the patient's overall management including radiotherapy volumes and recommendation against neoadjuvant or adjuvant systemic therapy.
施万细胞瘤是罕见的良性肿瘤，通常无症状，常在因其他目的进行的影像学检查中偶然发现。起源于前庭神经的施万细胞瘤是最常见的发病部位；然而，施万细胞瘤也可发生于颅外任何周围神经组织。在此，我们报告一例局部直肠腺癌患者的病例研究，该患者最初被发现腹膜后有一个施万细胞瘤，最初被认为是其直肠癌的淋巴结转移。通过活检确诊为施万细胞瘤，这导致了患者整体治疗方案的改变，包括放疗范围以及不建议进行新辅助或辅助全身治疗。
