OUTLINE: Patients with resectable tumors and with adequate generation of TIL are treated on Regimen A; those with unresectable tumors or insufficient TIL are treated on Regimen B. The following acronyms are used: CTX Cyclophosphamide, NSC-26271 IL-2 Interleukin-2 (Cetus), NSC-373364 LAK Lymphokine-Activated Killer Cells TIL Tumor Infiltrating Lymphocytes Regimen A: Prostaglandin Inhibition Therapy plus Biological Response Modifier Therapy. Indomethacin; plus CTX; IL-2-activated TIL; IL-2. Regimen B: Prostaglandin Inhibition Therapy plus Biological Response Modifier Therapy. Indomethacin; plus IL-2-activated LAK; IL-2.