Polycystic liver disease
|Polycystic liver disease|
|Micrograph showing a von Meyenburg complex, a bile duct hamartoma associated with polycystic liver disease. Trichrome stain.|
Polycystic liver disease (PLD) usually describes the presence of multiple cysts scattered throughout normal liver tissue. PLD is commonly seen in association with autosomal-dominant polycystic kidney disease, with a prevalence of 1 in 400 to 1000, and accounts for 8–10% of all cases of end stage renal disease. The much rarer autosomal-dominant polycystic liver disease will progress without any kidney involvement.
Associations with PRKCSH and SEC63 have been described. Polycystic liver disease comes in two forms as autosomal dominant polycystic kidney disease (with kidney cysts) and autosomal dominant polycystic liver disease (liver cysts only).
Most patients with PLD are asymptomatic with simple cysts found following routine investigations. After confirming the presence of cysts in the liver, laboratory tests may be ordered to check for liver function including bilirubin, alkaline phosphatase, alanine aminotransferase, and prothrombin time.
Patients with PLD often have an enlarged liver which will compress adjacent organs, leading to nausea, respiratory issues, and limited physical ability. Classification of the progression of the disease takes into consideration the amount of remaining liver parenchyma compared to the amount and size of cysts.
Many patients are asymptomatic and thus are not candidates for surgery. For patients with pain or complications from the cysts, the goal of treatment is to reduce the size of cysts while protecting the functioning liver parenchyma.
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- Online Mendelian Inheritance in Man (OMIM) 174050
- Everson, Gregory T. (2008). "Polycystic Liver Disease". Gastroenterology & Hepatology. 4 (3): 179–181. ISSN 1554-7914. PMC 3088294. PMID 21904493.