• Ryuya Maejima, Masahiro Aoyama, Masahito Hara, and Shigeru Miyachi.
• Department of Neurosurgery, Aichi Medical University, Nagakute, Aichi, Japan. Electronic address: sekuryu8@gmail.com.
• World Neurosurg. 2020 Jan 1; 133: 240-244.

BackgroundSpinal epidural hematoma associated with epidural metastasis is very rare. Epidural hematoma is unusual in itself, and metastatic epidural tumors do not commonly occur.Case DescriptionA 76-year-old man with a medical history of untreated stage III rectal cancer and chronic obstructive pulmonary disease underwent emergency spine surgery for acute development of severe quadriplegia due to cervical epidural hematoma after minor indirect trauma. Hemorrhagic lesions, such as yellow ligaments, were accompanied by hematomas that adhered to the dura mater and were confirmed on pathology to be small cell carcinoma. Some nodules were detected in the right pulmonary hilar lesion and pleural lesion on computed tomography, and stage IV small cell carcinoma was diagnosed.ConclusionsTo our knowledge, spinal epidural hematoma accompanied by epidural metastasis has not previously been reported. We hypothesized that tissue invasion of malignant neoplasms may cause hemorrhagic conditions. The presence of a tumor should therefore be considered in the differential diagnosis of cases of epidural hematoma.Copyright © 2019 Elsevier Inc. All rights reserved.

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