Inclusion Criteria

• Diagnosis of primary or secondary liver neoplasia. The histopathology confirmation criterion may be waived in patients with a radiographically identifiable liver mass, known laboratory or clinical risk factors for cancer or elevated tumor markers such as alphafetoprotein (AFP)2 and clinical findings. Guidelines from the American Association for the Study of Liver Diseases (AASLD) and the European Association for the Study of the Liver (EASL) describe in detail the approach and algorithm for diagnosing HCC:
• ECOG Performance Status Score 0 - 2
• Age ≥18 years
• Life expectancy ≥3 months
• >4 weeks since prior radiation, surgery or chemotherapy
• Able to comprehend and provide written informed consent in accordance with institutional and federal guidelines

Exclusion Criteria

Patients may not be treated with TheraSphere® if they have any of the following exclusions:

• Any pre-treatment laboratory findings within 15 days of treatment demonstrating liver dysfunction:
• AST or ALT >5 times UNL
• For HCC: Serum bilirubin >2.0 mg/dl (unless segmental infusion is planned47)
• For other primary or secondary liver neoplasis, bilirubin levels will be determined to confirm suitability for TheraSphere®based on levels specific to the primary or secondary liver neoplasia being treated
• Any contraindications to angiography and hepatic artery catheterization such as:
• History of severe allergy or intolerance to any contrast media, narcotics, sedatives or atropine that cannot be corrected or premedicated
• Bleeding diathesis, not correctable by usual forms of therapy
• Severe peripheral vascular disease that would preclude catheterization.
• Evidence of potential delivery of greater than 16.5 mCi (30 Gy absorbed dose) of radiation to the lungs in a single injection, or greater than 50 Gy for multiple injections
• Evidence of pulmonary insufficiency
• Evidence of any detectable Tc-99m MAA flow to the stomach or duodenum, after application of established angiographic techniques to stop or mitigate such flow
• Significant extrahepatic disease representing an imminent life-threatening outcome
• Active uncontrolled infection
• Significant underlying medical or psychiatric illness
• Co-morbid disease or condition that would preclude safe delivery of TheraSphere® treatment or, in the judgment of the physician, place the patient at undue risk
• Pregancy
• Special Categories of Patients: Not applicable
• Research in Mentally Disabled People: No.All participants or legal guardians will be fully able to give informed consent.