Convexity hemorrhage

BACKGROUND: Most coronavirus disease 2019 (COVID-19)-related cerebrovascular disorders are ischemic while hemorrhagic disorders are rarely reported. Among these, subarachnoid hemorrhage (SAH) is very rarely reported and nonaneurysmal SAH has been reported in only about a dozen cases. Here, we report a case of nonaneurysmal SAH as the only clinical manifestation of COVID-19 infection. In addition, we reviewed and analyzed the literature data on cases of nonaneurysmal SAH caused by COVID-19 infection...

OBJECTIVE: To characterize the salient features of hemorrhagic manifestation of meningiomas and to report on the first case of hemorrhagic meningiomatosis. METHODS AND MATERIALS: A comprehensive systematic review of the English-language literature was performed using MEDLINE, PubMed, and Google Scholar databases to identify case reports and series of brain meningiomas manifesting as intracranial hemorrhage. RESULTS: A total of 65 patients were evaluated...

Background: Primary intracranial synovial sarcomas (PrISS) are unusual dural based mesenchymal tumors seen most commonly in the supratentorial compartment. They can mimic a spontaneous intracranial hemorrhage or a high-grade glioma on imaging. Case Description: A 31-year-old male presented with headache and right hemiparesis for 2 weeks. CT brain revealed a left frontal spontaneous intracerebral hemorrhage. PrISS revealed a heterogeneously ring enhancing solid cystic lesion with attachment to convexity dura...

BACKGROUND/OBJECTIVE: Reversible cerebral vasoconstriction syndrome may be underdiagnosed. It can be accompanied by various complications, mainly intracerebral hemorrhage and ischemic stroke. The clinical presentation of this condition varies according to its localization. The aims of this review are to raise awareness of the disease, especially in the presence of corresponding risk factors; to connect its precipitating factors, pathophysiology, and complications; and to compare various differential diagnoses of vasoconstriction...

BACKGROUND:  Postoperative intracranial hypotension-associated venous congestion (PIHV) is a rare event. The authors report the case of a patient presenting with PIHV after spinal surgery following the sudden loss of cerebrospinal fluid (CSF) induced by suction drainage. METHODS:  A 69-year-old patient underwent uneventful revision surgery for wound dehiscence after lumbar surgery with placement of a subfascial suction drain. RESULTS:  Postoperatively, the patient presented with fluctuating consciousness and a generalized tonic-clonic seizure...

OBJECTIVES: Primary acute convexity subarachnoid hemorrhage (cSAH) in older patients can be observed in cerebral amyloid angiopathy (CAA) or idiopathic (with cSAH as potential initial manifestation of suspected CAA). We aimed to analyze baseline, clinical and MRI (including quantitative cSAH surface analysis and topographical probabilistic cSAH mapping) characteristics in elderly cSAH patients with CAA. MATERIALS AND METHODS: Baseline/clinical/MRI characteristics of 50 consecutive primary acute cSAH patients ≥ 55 years with suspected/possible/probable CAA were retrospectively analyzed...

Reversible cerebral vasoconstriction syndrome (RCVS) is a complex neurovascular disorder being recognized during the past two decades. It is characterized by multiple abrupt severe headaches and widespread cerebral vasoconstrictions, with potential complications such as ischemic stroke, convexity subarachnoid hemorrhage, intracerebral hemorrhage and posterior reversible encephalopathy syndrome. The clinical features, imaging findings, and dynamic disease course have been delineated. However, the pathophysiology of RCVS remains elusive...

BACKGROUND: Deep medullary vein (DMV) changes occur in cerebral small vessel diseases (SVD) and in Alzheimer's disease. Cerebral amyloid angiopathy (CAA) is a common SVD that has a high co-morbidity with Alzheimer's disease. So far, DMVs have not been evaluated in CAA. OBJECTIVE: To evaluate DMVs in Dutch-type hereditary CAA (D-CAA) mutation carriers and controls, in relation to MRI markers associated with D-CAA. METHODS: Quantitative DMV parameters length, tortuosity, inhomogeneity, and density were quantified on 7 Tesla 3D susceptibility weighted MRI in pre-symptomatic D-CAA mutation carriers (n = 8), symptomatic D-CAA mutation carriers (n = 8), and controls (n = 25)...

BACKGROUND AND PURPOSE: Cerebral venous sinus thrombosis (CVST) is a rare cerebrovascular disease with a wide spectrum of clinical manifestations. The aim of this study is to assess the presence of subarachnoid hemorrhage (SAH) in the context of CVST and to present its epidemiological, clinical and radiological/laboratory aspects. METHODS: Between October 2012 and October 2019, 43 patients with CVST were reviewed. Eleven (25.58%) cases presented SAH. RESULTS: A quarter of the patients evaluated with CVST had SAH...

Staphylococcus argenteus is a new species classified as part of the Staphylococcus aureus -related complex in 2015 and has been recognized to be as pathogenic as S. aureus . We describe the first case of endocarditis caused by S. argenteus . A 51-year-old man presented with chief complaints of fever and headaches. On admission, he showed a slight decrease in consciousness level (Glasgow Coma Scale, E4V4M6). Careful physical examination and imaging revealed a systolic heart murmur, Janeway lesions, and complicating convexity subarachnoid hemorrhage (cSAH) of the left frontal lobe...

A 71-year-old man had persistent cervical pain secondary to thunderclap headache during sleep. MRI conducted the next morning revealed subdural hematoma and convexity subdural hemorrhage on the right occipital region, and the patient was hospitalized. MRA showed vascular narrowing in the bilateral PCA. Follow-up MRA on day 8 of admission showed aggravated vascular narrowing of PCA, indicative of reversible cerebral vasoconstriction syndrome (RCVS). The patient was treated with a calcium-channel antagonist. Post-discharge MRA showed improvement of PCA narrowing, and the diagnosis of RCVS was confirmed...

BACKGROUND: Nontraumatic convexal subarachnoid hemorrhage (cSAH) is a rare type of atypical subarachnoid hemorrhage. It mainly presents as a focal and transient neurological deficit with similar manifestations as transient ischemic attack. CASE SUMMARY: We report a case of a 64-year-old man who visited the hospital with paroxysmal left-sided numbness and weakness is presented in this study. Computed tomography examination indicated a high-density image of the right frontal-parietal sulcus...

Intracranial hemorrhage associated with meningioma is rare. Relatively, few such cases are described in the source literature, and it is estimated that intracranial meningiomas presenting with hemorrhage account for about one percent of all meningiomas. Hemorrhage can occur in both meningioma tissue and on the tumor surface. It can lead to intracerebral, subdural and subarachnoid hematoma. This can in turn cause high intracranial pressure with rapid neurological deterioration. Urgent neurosurgical intervention is often necessary...

Atraumatic convexity subarachnoid hemorrhage (cSAH) is a rare non-aneurysmal SAH, commonly due to ipsilateral internal carotid artery (ICA) stenosis. It is unusual for the cSAH to occur contralaterally to the infarct. We report two cases of acute ischemic stroke associated with contralateral and ipsilateral cSAH that had different presentations.

Extra-axial developmental venous anomalies (DVAs) are important anatomic structures that contribute to supplemental venous drainage of intracranial contents into the extracranial veins. We present the case of a 35-year-old woman with a sudden-onset severe headache, nausea, and vomiting who was found to have an atraumatic subarachnoid hemorrhage of left frontal convexity. Workup revealed a large anomalous extra-axial vein originating in the right frontal area, traversing the left frontal region, penetrating the left frontal bone just above the supraorbital foramen with likely drainage into the left external jugular vein...

Background and Purpose: Convexity subarachnoid hemorrhage (cSAH) may predict an increased recurrence risk in cerebral amyloid angiopathy (CAA)-related intracerebral hemorrhage (ICH) survivors. We aimed to investigate whether cSAH detected on CT was related to early recurrence in patients with ICH related to CAA. Methods: We analyzed data from consecutive lobar ICH patients diagnosed as probable or possible CAA according to the Boston criteria using the method of cohort study...

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OBJECTIVE: This study aimed to elucidate the clinicoradiologic features of spontaneous hemorrhagic meningiomas (HMs) and examine risk factors associated with meningioma hemorrhage. METHODS: We retrospectively reviewed 651 consecutive meningioma patients who underwent surgical resection in our hospital between January 2011 and January 2021. After exclusions, 169 patients were included for analysis. Patients were grouped according to presence of hemorrhage in the meningioma: the HM group (n = 19) and non-HM group (n = 150)...

Remote cerebellar hemorrhage (RCH) is a rare complication of neurosurgical procedures and is characterized by a typical bleeding pattern defined as the "zebra sign." Only few cases of RCH have been reported in the English literature, and its pathophysiology remains unclear. In this report, we present the cases of three patients with RCH after three different procedures: burr-hole trephination and chronic subdural hematoma evacuation of bilateral cerebral convexity with subsequent subdural drain insertion, lumbar drainage for cerebrospinal fluid divergence for thoracic endovascular aortic repair, and combined bypass surgery for moyamoya disease...

BACKGROUND: We report the first case of a spontaneous ruptured anterior cerebral artery pseudoaneurysm in a patient affected by meningiomatosis. CASE DESCRIPTION: A 71-year-old female patient was admitted to our emergency department after acute loss of consciousness. An urgent head CT scan showed third ventricle hemorrhage and a giant extra-axial tumor with associated peritumoral bleeding. A second, smaller, and right-sided tumor was detected at the posterior third of the superior sagittal sinus, indicative of meningiomatosis diagnosis...