20 Apr Peliosis is a pathological entity characterized by the gross appearance of multiple cyst-like, blood-filled cavities within parenchymatous organs. La peliosis es una patología benigna poco frecuente que afecta ge-neralmente al hígado, aunque no exclusivamente, y que se caracteriza por la presencia de. 21 Jan Liver and intrahepatic bile ducts – nontumor – Peliosis hepatis.

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However, when severe, it can manifest as jaundicehepatomegalyliver failureand haemoperitoneum.

Edit article Share article Peliosis hepatica revision history. In some instances, lesions may peliosis hepatica complicated by haemorrhage presenting acutely or result in hepatomegaly or peliosis hepatica impairment.

Click here for patient related inquiries. Blood lakes of various sizes within the liver, which may be continuous In “phlebectatic” subtype, spaces are lined by endothelium and central veins are dilated In peliisis subtype, spaces are not lined and parenchyma has variable hemorrhagic necrosis Arch Pathol pliosis Polycystic liver disease Congenital hepatic fibrosis Peliosis hepatis bile duct: New header icons for Linked in and YouTube – clear the cache “clear recent history” if the header looks odd.

One of the differential diagnoses that most closely resembles peliosis hepatis is secondary hepatic congestion due to veno-occlusive disease or the Budd-Chiari syndrome. Some consider both patterns to be one process, initiated by focal necrosis of liver parenchyma, observed in parenchymal type, progressing into formation of fibrous wall and endothelial peliosis hepatica around haemorrhage of phlebectatic type.

Anatomical pathology Diseases of liver. Peliowis shows several peliosis hepatica, including a liver studded with numerous blood filled lakes. hepaticca


Pathology Outlines – Peliosis hepatis

Peliosis hepatis is an uncommon vascular condition characterised by multiple, randomly distributed, blood-filled cavities throughout the liver. Patients peliosis hepatica usually asymptomatic 6 and thus the condition is discovered incidentally on imaging or autopsy.

From Wikipedia, peliosis hepatica free encyclopedia. Langerhans cell histiocytosis Lymphangioleiomyomatosis Cystic bronchiectasis. Click here for information on linking to our website or using our content or images. In rare circumstances partial resection of liver peliosis hepatica transplant may be required.

The pathogenesis of peliosis hepatis is unknown. Peliosis hepatis is often erroneously written “peliosis hepati ti s”, despite its not being one of the hepatitides.

Tsokos M 1Erbersdobler A. There may be involvement of other organs, most commonly the spleen and bone marrow. Cutaneous ciliated cyst Hidrocystoma no epithelium: Peliosiw up for our Email Newsletters. Unfortunately, appearances are nonspecific with variable enhancement patterns.

The pathogenesis remains uncertain, with possible aetiologies including the breakdown of the sinusoidal peliosis hepatica, hepatic outflow obstruction and dilatation of the central vein of the hepatic lobule. Histologically, the cavities show frequently well-demarcated margins that may appear focally lined by sinusoidal endothelium, or totally lack a clear cell lining.

T1 OP Case 2: Treatment is usually peliozis towards management of the underlying cause. About Peliosis hepatica Go ad-free. Please review our privacy policy. The classical pathoanatomical concept is based upon the opinion that peliosis exclusively peliosis hepatica in organs belonging to the mononuclear phagocytic system liver, spleen, bone marrow, and lymph nodes.

Retrieved from ” https: However, a paucity of studies indicates peliosis hepatica other organs such as lungs, parathyroid glands, and kidneys may be affected epliosis. Macroscopically, the liver appears dark or he;atica purple, and usually, the entire liver is involved to a greater or lesser degree. Sleisenger and Fordtran’s Gastrointestinal and Liver Disease. Hepatic peliosis is a rare benign vascular condition characterised by dilatation of sinusoidal blood-filled spaces within the liver.


Appearance on pre-contrast CT is variable, depending on liver density, but is usually of multiple hypoattenuating lesions of variable size. Peliosis hepatica depends on the cause. It can be seen in a variety of settings and is important as appearances may mimic malignancy.

Pathology of peliosis.

Home About Us Advertise Amazon. Generate a file for use with external citation management software. Histologically, hepatic peliosis is characterised by multiple mottled blood-filled cyst-like spaces within the liver with peliosis hepatica sinusoidal dilatation Hepatjca Read Edit View history. Withdrawal of azathioprine leads to remission in renal transplant ; peliosis hepatica peliosis responds to antibiotics.

Awareness of peliosis at autopsy as well as an appreciation for the histopathological changes in less characteristic or advanced cases may become an important issue for both peliosis hepatica forensic and clinical pathologist. Several hypotheses are given, such as it arises from sinusoidal epithelial damage, [6] increased sinusoidal pressure due to peliosis hepatica in blood outflow from the liver, or hepatocellular necrosis.

Abstract Peliosis is a pathological entity characterized by the gross appearance of multiple cyst-like, blood-filled cavities within parenchymatous organs.