Symptomatic non-parasitic congenital cysts of the liver.

Seven cases of symptomatic non-parasitic congenital cysts of the liver are reported. Preoperative correct diagnosis can be established with non-invasive examinations, essentially with echotomography. Laparoscopy can represent a decisive investigation, permitting the direct view of the cysts. Surgical treatment of non-parasitic congenital cysts is based upon the excision of the lesions when symptomatic; this is the only definitive treatment.