What does Periportal edema mean?
Periportal halos which may be due to blood are commonly seen in patients with liver trauma. Periportal edema may cause this sign in patients with congestive heart failure and secondary liver congesion, hepatitis, or enlarged lymph nodes and tumors in the porta hepatis which obstruct lymphatic drainage.
Is Periportal edema serious?
Conclusion. The existence of periportal oedema is one sign of abdominal trauma and is independent of liver injury. Although it correlates with the sex, weight, and age of the patient, there is no correlation with arterial blood pressure, heart rate, pH value, lactate, and BE.
What causes mild periportal edema?
Causes of periportal edema in people are numerous and include hepatic and extra-hepatic disorders such as acute hepatitis [1, 8], veno-occlusive disease after liver and bone marrow transplantation [1, 9], overhydration [10] or trauma-related pathologies [5, 11, 12].
What is Periportal edema CT scan?
Periportal halo or periportal collar sign refers to a zone of low attenuation seen around the intrahepatic portal veins on contrast-enhanced CT or hypoechogenicity on liver ultrasound. It likely represents periportal edema, which is often used as a synonymous term.
What does Periportal mean?
Medical Definition of periportal : of, relating to, occurring in, or being the tissues surrounding a portal vein.
What is portal inflammation?
Portal inflammation may involve all or some portal fields. In acute viral hepatitis most portal fieds are infiltrated with inflammatory cells, mostly lymphocytes with some plasma cells containing IgG (1) and iron laden macrophages.
What causes swollen Periportal nodes?
Periportal nodes are frequently enlarged in patients with cancers of the liver, gallbladder, biliary tree and pancreas and lymphoma and their identification is essential step in staging and treatment planning of these cancers.
Where is the Periportal vein?
The periportal space (Latin: spatium periportale), or periportal space of Mall, is a space between the stroma of the portal canal and the outermost hepatocytes in the hepatic lobule, and is thought to be one of the sites where lymph originates in the liver.
What causes portal inflammation?
Portal inflammation is independently associated with fibrosis and metabolic syndrome in pediatric nonalcoholic fatty liver disease.
What is brain edema?
Introduction. The most basic definition of cerebral edema is swelling of the brain. It is a relatively common phenomenon with numerous etiologies. Cerebral edema categorizes into either vasogenic, cellular, osmotic, and interstitial causes.
What is Periportal?
The periportal region is a potential space surrounding the portal vein and its intrahepatic branches. Its contents include the hepatic artery, biliary radicle, nerves and lymphatics.
Where are the periportal lymph nodes located?
The periportal lymph node was usually located posterior and lateral to the portal vein, below the junction of the cystic and hepatic ducts.
Why does the brain swell after trauma?
The initial injury can cause brain tissue to swell. In addition, broken pieces of bone can rupture blood vessels in any part of the head. The body’s response to the injury may also increase swelling. Too much swelling may prevent fluids from leaving the brain.
What is the relationship between trauma severity and periportal edema?
Periportal edema in trauma patients: correlation with trauma severity PPE is seen significantly more often on abdominal CT scans following major traumas (ISS ≥ 16), but is not necessarily associated with liver injury.
Is cerebral edema associated with intracranial hypertension in traumatic brain injury?
Electronic address: [email protected]. Cerebral edema (CE) and resultant intracranial hypertension are associated with unfavorable prognosis in traumatic brain injury (TBI). CE is a leading cause of in-hospital mortality, occurring in >60% of patients with mass lesions, and ∼15% of those with normal initial computed tomography scans.
What is the pathophysiology of traumatic brain injury?
Traumatic brain injury is a heterogeneous disorder resulting from an external force applied to the head. The development of cerebral edema plays a central role in the evolution of injury following brain trauma and is closely associated with neurologic outcomes.