Intraparenchymal lung abscess development associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is a rare complication, only half dozen primary cases having been reported in the literature. We present case of patient Waldenström’s macroglobulinemia who developed subsequent to SARS-CoV-2 infection. 63-year-old male and history cavitating intraparenchymal an air-f...

BACKGROUND AND PURPOSE Many patients with aneurysmal subarachnoid hemorrhage (SAH) with intraparenchymal extension develop early hematoma expansion, which is not explained by aneurysmal rerupture in half of cases. In patients with primary intracerebral hemorrhage, the computed tomography angiography (CTA) spot sign predicts hematoma expansion and poor outcome. We conducted a 2-center prospectiv...

BACKGROUND AND PURPOSE We aimed to examine the impact of fibrinogen concentrations on the incidence of stroke. METHODS We examined the association between fibrinogen and risk of total stroke and stroke subtypes in an 11-year prospective study of 4608 men and 7589 women aged 40 to 79 years with no history of stroke and/or coronary heart disease. The analysis was repeated, stratified by smoking...

OBJECTIVE Extraventricular intraparenchymal choroid plexus tumors (CPTs) in the cerebral hemisphere are extremely rare. The aim of this study was to investigate the clinical characteristics, radiologic findings, and surgical outcomes of this atypical type of CPT. METHODS The study comprised 6 patients with pathologically proven extraventricular intraparenchymal CPTs who were surgically treate...

BACKGROUND Few studies have examined the association between low levels of low-density lipoprotein (LDL) cholesterol and risk of intraparenchymal hemorrhage. METHODS AND RESULTS A total of 30 802 men and 60 417 women, 40 to 79 years of age with no history of stroke or coronary heart disease, completed a baseline risk factor survey in 1993 under the auspices of the Ibaraki Prefectural Health S...

Both intraparenchymal papillary meningioma and papillary meningioma with cyst formation of brainstem have never been reported. The authors present an extremely rare case of patient with intraparenchymal papillary meningioma of brainstem. A 23-year-old Chinese male presented with a 4-month history of progressive left upper limb and facial nerve palsy. Magnetic resonance imaging revealed a cystic...

OBJECTIVE To determine the effect of supratentorial intraparenchymal mass lesions of various volumes on dural venous sinuses structure and transluminal pressures. METHODS Three set of preparations were made using adult isolated head derived from fresh human cadaver. A supratentorial intraparenchymal balloon was introduced and inflated at various volumes and effect on dural venous sinuses was ...

BACKGROUND Intraparenchymal schwannomas in the central nervous system are very rare. Because most of these are benign, complete excision is the treatment of choice. Further, their radiological findings are difficult to differentiate from glioma. Because Schwann cells are not indigenous to cerebral parenchyma, a lot of speculation has been attached to their origin. CASE DESCRIPTION We report o...

Abnormal cerebral vasculature can be a manifestation of a vascular malformation or a neoplastic process. We report the case of a patient with angiography-negative subarachnoid hemorrhage (SAH) who re-presented 3 years later with a large intraparenchymal hemorrhage. Although imaging following the intraparenchymal hemorrhage was suggestive of arteriovenous malformation, the patient was ultimately...

A previously healthy 9-year-old girl presented with sudden-onset headache followed by confusion. In the emergency department, she was hypertensive, bradycardic, and no longer responsive to any stimuli. An emergent head CT scan demonstrated a left frontal intraparenchymal hematoma with intraventricular and subarachnoid extension as well as subfalcine herniation (figure). She underwent decompress...