a. Known HIV infection, b. Other circumstances (i.e. concurrent use of systemic immunosuppressants and immunocompromising condition) that in the opinion of the physician renders the patient a poor candidate for this trial. c. Patients with ANY malignant or metastatic SCC mass or lesion within the Central Nervous System (CNS). (e.g. Intraparenchymal/ Brain, Intracordal / Spinal Canal, Bony masses or lesions with extension into the CNS parenchyma) d. Patients with ANY malignant or metastatic SCC mass or lesion or a volume of a mass or lesion in a location that in the judgment of the investigator may significantly impair the health of or threaten the patients life, should an Inflammatory Response occur.