Context: Metastatic intradural extramedullary spinal cord tumors are extremely rare.

Findings: A 76-year-old woman presented with intractable neck pain. Three years earlier, she had been treated for ovarian cancer with bilateral salpingo-oophorectomy. A year later, she underwent resection of a brain metastasis. Magnetic resonance imaging (MRI) showed an encapsulated intradural extramedullary mass at C4–C5. C4–C5 hemilaminectomy, tumor resection, and biopsy were performed. Histological examination of the resection revealed an adenocarcinoma. After surgery, her intolerable neck-shoulder pain was fully resolved, and she had no difficulties with daily living activities. However, two months later, she underwent gamma knife radiosurgery for the recurrent metastatic brain tumor, and four months later, she died from cachexia.

Conclusion: Although cases of metastatic intradural extramedullary spinal tumors from ovarian cancer are extremely rare, their possibility should be considered in the differential diagnosis. A history of brain metastases and enhancement on T1-weighted MRI were helpful for making an accurate diagnosis.

背景：转移性硬膜内髓外脊髓肿瘤极为罕见。

结果：一名 76 岁的女性出现顽固性颈部疼痛。三年前，她因卵巢癌接受了双侧输卵管卵巢切除术。一年后，她接受了脑转移瘤切除术。磁共振成像 (MRI) 显示 C4-C5 处有包裹的硬膜内髓外肿块。进行了 C4-C5 半椎板切除术、肿瘤切除术和活检。切除的组织学检查显示腺癌。手术后，她难以忍受的颈肩疼痛得到完全缓解，日常生活活动没有任何困难。然而，两个月后，她因复发性转移性脑瘤接受了伽马刀放射外科手术，四个月后，她死于恶病质。

结论：虽然卵巢癌引起的转移性硬膜内髓外脊柱肿瘤极为罕见，但在鉴别诊断时应考虑其可能性。脑转移病史和 T1 加权 MRI 增强有助于做出准确诊断。