LANDscape MApping of Epitopes and T Cell Receptors for Selected Cancers

Inclusion Criteria: 1. Patients with a histological or cytological diagnosis of: 1. EBV-related malignancies (e.g. nasopharyngeal cancer) 2. HPV-related malignancies, including squamous cell carcinoma of the head and neck, cervix, vulva or anal canal. HPV positivity is required for squamous cell cancers of the head and neck.; p16 positivity as a surrogate for HPV testing is acceptable. HPV positivity is not required for cervix, vulva or anal canal cancer. * For cancers of the anal canal, late stage distant metastatic tumor tissue is preferred. However, early stage primary site tissue is acceptable, if the tissue can be procured without contamination by intestinal microbiota. 3. For HCC, only patients who have above UHN institutional upper limit of normal levels of alpha-fetoprotein (AFP) in serum will be eligible. The diagnosis of HCC should be made based on standard of care with or without tumor tissue confirmation. 2. Patients must be ≥ 18 years old. 3. Patients must have provided voluntary written informed consent. Exclusion Criteria: 1\. Any condition that, in the opinion of the Investigator, would interfere with patient safety, or evaluation of the collected specimens and interpretation of study results.