What does periportal mean in medicine?
Medical definition of periportal: of, relating to, occurring in, or being the tissues surrounding a portal vein.
What is a periportal Halo?
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...
What is the periportal of the liver?
What is Periportal? What is Periportal? 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. Click to see full answer.
What is periportal necrosis?
situated around the portal vein of the liver. periportal necrosis. necrosis of hepatocytes localized around the portal vein. Usually associated with ingested toxins.
What is the meaning of Periportal?
Medical Definition of periportal : of, relating to, occurring in, or being the tissues surrounding a portal vein.
What does prominent Periportal lymph nodes mean?
Enlarged periportal lymph nodes often are noticed during imaging of the upper abdomen. Malignant infiltration and enlargement of periportal nodes occur in patients with cancers of the liver, gallbladder, biliary tree, and pancreas and lymphoma.
Where is the periportal lymph node located?
The periportal lymph node was usually located posterior and lateral to the portal vein, below the junction of the cystic and hepatic ducts.
What does mild 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.
What is the normal size of periportal lymph nodes?
Suprapancreatic and periportal lymph nodes are normally larger than 1 cm by laparoscopic ultrasound evaluation. Surg Endosc.
What causes enlarged lymph nodes near liver?
The enlargement of lymph nodes is a common clinical sign in connective tissue disease (CTD) and viral hepatitis. In this research, we evaluated the incidence of enlarged lymph nodes in autoimmune liver diseases (AILD).
What are the signs that you have a cancerous lymph node?
What Are Signs and Symptoms of Cancerous Lymph Nodes?Lump(s) under the skin, such as in the neck, under the arm, or in the groin.Fever (may come and go over several weeks) without an infection.Drenching night sweats.Weight loss without trying.Itching skin.Feeling tired.Loss of appetite.More items...
Do you have lymph nodes in your liver?
The hepatic nodes consist of the hepatic, receiving lymph from the celiac nodes and located on the hepatic artery; the subpyloric, a group of four to five nodes at the bifurcation of the gastroduodenal artery; and the cystic nodes, on the neck of the gallbladder.
Is lymphoma in the lymph nodes?
Lymphoma is a cancer of the lymphatic system, which is part of the body's germ-fighting network. The lymphatic system includes the lymph nodes (lymph glands), spleen, thymus gland and bone marrow. Lymphoma can affect all those areas as well as other organs throughout the body.
What is Periportal tracking?
Periportal tracking is also a nonspecific finding, and can be detected in cases of cirrhosis, hepatitis, hepatic masses, biliary obstruction, congestive heart failure, liver transplant recipients and bone marrow transplant recipients (2, 3). Several studies found that patients with acute pyelonephritis.
What is Periportal edema CT scan?
Periportal halo (CT/US) 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 causes Periportal edema of liver?
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 a periportal halo?
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. Periportal haloes may occur around the central portal veins or their peripheral branches and occur on both sides of the portal triads.
Where do periportal haloes occur?
Periportal haloes may occur around the central portal veins or their peripheral branches and occur on both sides of the portal triads. On this page: Article: Pathology. Differential diagnosis. See also. References. Images: Cases and figures.
