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Tortuous occipital emissary vein combined with dural venous sinus stenosis in contrast-enhanced MRV for evaluation of idiopathic intracranial hypertension.
Jpn J Radiol
October 2024
Department of Radiology, Koç University Hospital, Topkapı, Davutpaşa Caddesi, 34010, Istanbul, Turkey.
Purpose: Venous outflow impediment is increasingly recognized in idiopathic intracranial hypertension (IIH). We aim to search for the value of tortuous occipital emissary vein (OEV) in IIH by integrating measurable transverse sinus (TS) stenosis in contrast-enhanced MR venography (CE-MRV).
Methods: Twenty-one IIH patients were evaluated with CE-MRV.
Orthopedic Challenges in Avascular Necrosis Management: A Case Report of Surgical Complications and Multidisciplinary Care.
Cureus
April 2024
Pathology, Merit Health Wesley, Hattiesburg, USA.
A 52-year-old woman, with a multifaceted medical background encompassing spinal cord injury, pneumonia, and recurrent hospitalizations, presents with enduring left hip and leg discomfort ultimately diagnosed as avascular necrosis (AVN). She previously underwent intraosseous direct anterior arthroplasty (DAA) of the left hip during the removal of orthopedic artifacts. Despite enduring hypertension, severe trochanter dislocation, and prosthesis fracture, she recovered and required additional surgery to address the dislocation and fracture.
View Article and Find Full Text PDFIs Osteoarthritis a Vascular Disease?
Front Biosci (Landmark Ed)
March 2024
Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA.
Osteoarthritis (OA) is now considered as a multifaceted disease affecting various articular tissues, including cartilage, bone, synovium, and surrounding ligaments. The pathophysiology strongly implicates intricate chemical communication, primarily through cytokines, leading to the production of degradative enzymes in cartilage, inflammatory peptides in synovium, and structural changes in bone, resulting in characteristic clinical features such as joint deformities and loss of cartilage space seen on X-rays. Recent studies highlight the previously underestimated role of subchondral bone in OA, revealing its permeability to cytokines and raising questions about the influence of abnormal perfusion on OA pathophysiology, suggesting a vascular component in the disease's etiology.
View Article and Find Full Text PDFSpontaneous Bone Marrow Edema: Perfusion Abnormalities and Treatment with Surgical Decompression.
Int J Mol Sci
April 2023
Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA.
Bone marrow edema (BME), also termed bone marrow lesions, is a syndrome characterized by bone pain and the appearance of high signal intensity on T2 fat-suppressed and short tau inversion recovery (STIR) MRI sequences. BME can be related to trauma or a variety of non-traumatic diseases, and current treatment modalities include non-steroidal anti-inflammatory drugs (NSAIDS), bisphosphonates, denosumab, extracorporeal shockwave therapy (ESWT), the vasoactive prostacyclin analogue iloprost, and surgical decompression. Spontaneous BME is a subset that has been observed with no apparent causative conditions.
View Article and Find Full Text PDFClassification and Management Considerations for Intraosseous Dural Arteriovenous Fistulae.
Neurosurgery
August 2023
Department of Radiology and Radiological Sciences, Johns Hopkins Hospital, Baltimore, Maryland, USA.
Background: Intraosseous dural arteriovenous fistulas (IODAVFs) are rare DAVFs that communicate with marrow. Given their infrequency, common nomenclature is nonexistent. Patients may present with benign symptoms, such as tinnitus, or venous hypertension symptoms including hemorrhage depending on the venous outflow pattern.
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