World Neurosurg
-
Case Reports
Interval Thrombosis of Arteriovenous Malformation Draining Vein after Stereotactic Radiosurgery.
Arteriovenous malformations (AVMs) are high-pressure vascular lesions that can present formidable therapeutic challenges. One treatment option for these lesions is stereotactic radiosurgery, which may be used to provoke progressive thrombosis of the draining veins and subsequent obliteration of the AVM nidus. In this clinical image, we successfully demonstrate this therapeutic modality with the case of a 26-year-old man with a large frontal AVM, treated with stereotactic radiosurgery.
-
Case Reports
Spontaneous spinal subdural hematoma: A case report of two-year clinical and radiological findings.
Spontaneous spinal subdural hematoma (SDH) is rare but leads to severe nerve compression. According to the symptoms, surgery decompression and conservative treatment are justified options. We present a spontaneous spinal SDH case treated by decompression surgery for the lumbar region and conservative observation for the thoracic region. A series of images of the disease course is available. ⋯ Surgical intervention is recommended in patients presenting with severe neurologic deficits. Conservative treatment is a reasonable option for asymptomatic patients.
-
The association between a dural arteriovenous fistula (dAVF) and perimedullary arteriovenous fistula (AVF) is rarely observed at the craniocervical junction (CCJ). We present a case of subarachnoid hemorrhage (SAH) with concurrent dAVF and perimedullary AVF at the CCJ. Here, we describe the cause of bleeding and the process of determining whether it was a varix or an arterial aneurysm. ⋯ In recent reports, SAH caused by concurrent dAVF and perimedullary AVF raised the possibility of an arterial aneurysm. However, in this case, the possibility of venous bleeding was high and a varix rather than an aneurysm was observed. On the basis of the reported cases, concurrent dAVF and perimedullary AVF at the CCJ is a "middle-flow arteriovenous shunt" that may induce a varix or an arterial aneurysm.
-
The superficial temporal artery (STA)-middle cerebral artery (MCA) anastomosis (STA-MCA bypass) currently is performed to prevent atherosclerotic occlusive cerebrovascular disease. However, the benefits of the bypass surgery remain controversial. To ensure consistent surgical benefits, understanding the mechanisms of perioperative cerebral infarction (CI) is required. Moreover, appropriate patient selection procedures must be determined to decrease the rate of perioperative stroke. We retrospectively investigated patients who underwent bypass surgery at our institution and determined that the patients who presented with cortical venous reddening after anastomosis during the surgery developed perioperative CI. ⋯ We determined that patients presenting with cortical venous reddening after anastomosis developed perioperative CI. Cortical venous reddening may be an important predictor for the occurrence of CI after STA-MCA bypass surgery for patients with atherosclerotic occlusive cerebrovascular disease.
-
Hyperhidrosis is caused by sympathetic dysfunction of the central or peripheral nervous system. However, intramedullary spinal cord tumors presenting with hyperhidrosis as an initial symptom have been rarely reported in the literature. ⋯ Few cases of intramedullary spinal cord tumors presenting as hyperhidrosis in clinical manifestation have been reported in the literature. Sympathetic irritation by the tumor, particularly in the location around the gray matter of the lateral spinal cord, may account for the hyperhidrosis as the initial symptom in this patient. Therefore, if a patient has autonomic dysfunction, the spine cord should be additionally examined using MR imaging.