Al-Ishaq Zaid, Al-Sulaimani Alonood, Al-Qassabi Badriya S, AlRahbi Fathiya, Al Baimani Khalid, Muhammad Jawa Z, Aljarrah Adil
Department of Surgical Oncology, Sultan Qaboos Comprehensive Cancer Care and Research Centre, University Medical City, Muscat, Oman.
Department of Surgery, Sultan Qaboos University Hospital, University Medical City, Muscat, Oman.
Sultan Qaboos Univ Med J. 2025 May 2;25(1):132-136. doi: 10.18295/squmj.6.2024.041.
Metastatic breast cancer (MBC) represents 5-10% of newly diagnosed breast cancer cases, referred to as de novo stage IV MBC. Distinguishing a distant lesion in breast cancer patients can be challenging. Therefore, obtaining a histopathological confirmation of a metastasis is advisable, as a suspicious metastatic lesion may be benign or exhibit different immunohistochemistry compared to the primary site. We report a 55-year-old female patient who presented to a tertiary care hospital in Muscat, Oman in 2019. The patient was undergoing staging scans for newly diagnosed breast cancer, where radiological findings suggested appendix metastasis. However, subsequent laparoscopic appendicectomy revealed an appendicular schwannoma, confirmed through immunohistochemistry. The patient received curative-intent breast cancer treatment. With the increasing use of advanced staging scans in breast cancer, clinicians should thoroughly investigate and confirm metastatic disease, especially in uncommon metastatic sites, before initiating treatment.
转移性乳腺癌（MBC）占新诊断乳腺癌病例的5%-10%，称为新发IV期MBC。鉴别乳腺癌患者的远处病变可能具有挑战性。因此，可取的做法是获得转移灶的组织病理学确认，因为可疑的转移病变可能是良性的，或者与原发部位相比表现出不同的免疫组化特征。我们报告了一名55岁女性患者，她于2019年前往阿曼马斯喀特的一家三级护理医院就诊。该患者因新诊断的乳腺癌正在进行分期扫描，影像学检查结果提示阑尾转移。然而，随后的腹腔镜阑尾切除术显示为阑尾神经鞘瘤，并通过免疫组化得以证实。该患者接受了根治性乳腺癌治疗。随着乳腺癌高级分期扫描的使用日益增加，临床医生在开始治疗前应彻底调查并确认转移性疾病，尤其是在不常见的转移部位。
