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Updated: Jul 21, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

Caso de Hematoma Subdural Espinal Agudo Masivo con Signo de Mancha en TC

Daigo Aso¹, Hisaaki Uchikado², Shuji Fukuda³

¹Department of Neurosurgery, Saiki Central Hospital, Saiki, JPN.

|December 25, 2025

Abstract:

Acute massive spinal subdural hematoma (ASSDH) is an extremely rare condition. We report a case of ASSDH in a 74-year-old woman who suddenly developed paraplegia after receiving oral anticoagulant therapy for severe back pain. Reported cases of ASSDH show various clinical presentations, ranging from low back pain to varying degrees of paralysis. In this case, the patient developed acute complete paraplegia. Despite undergoing emergency decompression surgery as soon as possible, the symptoms did not improve. Preoperative angiography revealed a "spot sign" originating from the radiculomedullary artery, suggesting the possibility of arterial dissection. This report mainly describes the preoperative and intraoperative findings of this rare case.

Palabras clave:

terapia anticoagulante complicación paraplejía disección de la arteria espinal hematoma subdural espinal signo de mancha

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