Surgical treatment of hepatobiliary cystadenomas in cats.

Hepatobiliary cystadenomas are an uncommon benign liver tumor in cats. Clinical signs of hepatobiliary cystadenomas include anorexia, lethargy, and weakness. The diagnostic tool of choice is ultrasonography, which can confirm that the lesion emanates from liver tissue and can aid percutaneous aspiration of hepatobiliary cystadenoma fluid. Complete surgical excision is the treatment of choice, but even partial resection can merit a good prognosis.