Angiomyolipomata

Angiomyolipomata are fatty tumours made of fat, fibrous and muscle cells with a very rich blood supply. They are rare in the liver but occur much more frequently in the kidney. Occasionally patients have large numbers of these replacing the normal liver tissue in a similar way to polycystic liver disease can. Normally liver function is preserved, but the enlarged liver can cause pressure symptoms or upper abdominal discomfort.