CT and MR presentation of acute hemorrhage in a spinal schwannoma

Traumatic intratumoral hemorrhage as the presenting symptom of a spinal neurinoma

“…1,9,10,13,15,24,26,32 Intracranial neurinomas have also been reported to bleed spontaneously, 2 causing either SAH or intratumoral hemorrhage. However, we found only three reports of a spinal neurinoma presenting with intratumoral or subdural hematomas, [29][30][31] as was the presentation in our case. In two reports the authors described spontaneous bleeding from cervical cord schwannoma, and in one report intratumoral bleeding after physical exertion was described.…”

Spinal Schwannoma presenting due to torsion and hemorrhage: case report and review of literature

“…There is only one prior report of a nerve sheath tumor presenting with torsion [4] and one with hemorrhage [5]. We present the second documented case of torsion, presumed infarction, and subsequent hemorrhage within a cauda equina nerve root tumor resulting in acute symptoms and pain.…”

“…Local pain and radiculopathy from compression of local structures is the most common presenting syndrome; however, when the tumors are large enough, motor weakness or cauda equina syndrome may occur. The presentation of a tumor due to torsion of the lesion and its attached nerve is extremely rare [4], and hemorrhage within spinal tumors is also rare [5].The following is a rare case of an intradural nerve sheath myxoid Schwannoma, which had twisted, resulting in torsion and hemorrhage within the lesion causing pain and weakness in the nerve distribution in question. …”

Hemorrhagic thoracic schwannoma presenting with intradural hematoma and acute paraplegia after spinal manipulation therapy

“…[4][5][6][7] Similarly few reports have described hemorrhagic conversion of spinal schwannomas presenting with spinal hematomas and related symptoms. [8][9][10][11][12][13][14][15][16] These reports have described hemorrhage from spinal schwanno- Table 1 and Figure 2 show a distribution in the spine of spinal schwannomas presenting with intradural subdural/ intratumoral hemorrhage, with most frequent presentation in the thoracic spine. Several reports have postulated changes in vascular supply as contributing factors to hemorrhage development in the setting of spinal schwannomas.…”