1/4. Diffuse dural gadolinium MRI enhancement associated with bilateral chronic subdural hematomas.Chronic subdural hematomas (CSDHs) typically present with cognitive dysfunction and a history of trauma. Localized dural enhancement on postcontrast MRI scans associated with the surrounding membrane has been described in CSDH. We present an 83-year-old man with rapidly progressing cognitive dysfunction 4 weeks after head trauma related to a fall. MRI showed CSDHs, which in addition to localized dural gadolinium enhancement, showed a marked diffuse, symmetric, contiguous pachymeningeal enhancement of the supratentorial and infratentorial intracranial dural mater. Meningeal biopsy failed to disclose an infectious or neoplastic cause of the enhancement and instead showed fibrocollagenous change. We conclude that diffuse dural enhancement on MRI scans associated with CSDH cause does not necessarily indicate a superimposed process such as infection or malignancy. CSDH should be considered in the differential diagnosis of diffuse dural enhancement, especially when supported by appropriate clinical findings.- - - - - - - - - - ranking = 1keywords = supratentorial (Clic here for more details about this article) |
2/4. Posterior fossa subdural hygroma with supratentorial chronic subdural haematoma.Posterior fossa subdural hygromas are very rare. They tend to occur following direct occipital trauma. We present an unusual case of complex subdural hygroma of the posterior fossa, which was associated with a supratentorial chronic subdural haematoma. This developed after an apparently minor injury to the head. The unusual features of our case are discussed. We also review the literature and discuss the natural history and pathogenesis of subdural hygroma.- - - - - - - - - - ranking = 5keywords = supratentorial (Clic here for more details about this article) |
3/4. Chronic subdural hematoma following dural metastasis of gastric cancer: measurement of pre- and postoperative cerebral blood flow with N-isopropyl-p-[123I]iodoamphetamine--case report.A 58-year-old female with gastric cancer presented with left chronic subdural hematoma (CSH) without history of head injury. magnetic resonance imaging revealed left CSH with atypical findings such as abnormal dural enhancement and swelling of the left cerebral hemisphere. One month after gastrectomy, motor aphasia and right hemiparesis developed. Irrigation of the left CSH was performed. The hematoma was abnormally mucinous and became solid immediately after irrigation. Histological examination showed that adenocarcinoma cells had metastasized to the dura mater and the outer membrane of the hematoma. The preoperative cerebral blood flow (CBF) in the affected cerebral hemisphere, measured by single photon emission computed tomography using N-isopropyl-p-[123I]iodoamphetamine, was much higher than that in the opposite hemisphere, whereas the postoperative CBF was almost equal in both hemispheres. Subdural hematomas secondary to dural metastases of extraneuronal malignancies are rare, and are usually the chronic type. Measurement of the pre- and postoperative CBF in the present patient with CSH following dural metastasis of the malignant tumor showed that preoperative hyperemia in the affected hemisphere may result from dilation of the cerebral vessels caused by the effects of the CSH.- - - - - - - - - - ranking = 0.00028765534719377keywords = cancer (Clic here for more details about this article) |
4/4. Cervical syringohydromyelia secondary to chronic supratentorial subdural hematoma.INTRODUCTION: Syringohydromyelia associated with supratentorial space-occupying lesion has rarely been reported. We present a 28-year-old woman was admitted to the hospital with head and neck pain. Upon examination, there was only left central facial paralisia, with no evidence of papilledema. methods AND RESULTS: Cranial magnetic resonance imaging (MRI) revealed a left parietal and temporal chronic subdural hematoma (CSH) with a 1-cm shift to the right from midline. Also, cervical MRI revealed a syringohydromyelic cavity at the level of C6/7. The patient was operated on for supratentorial CSH. A follow-up cervical MRI revealed no syringohydromyelic cavity after 2 months. No neurological deficit was reported, and overall outcome was excellent. CONCLUSION: Syringohydromyelia was secondary to a space-occupying lesion in our case of supratentorial chronic subdural hematoma.- - - - - - - - - - ranking = 7keywords = supratentorial (Clic here for more details about this article) |