Foreword by H.N.Wagner Jr. Nuclear Medicine in the Diagnosis and Treatment of Malignant Tumors: Neuro-endocrine Tumors (B. Shapiro, L.M. Fig, M.D. Gross, B.L.Shulkin, J.C.Sisson); Brain Tumors N.(Tonami, H. Sumiya); Melanoma( R.F. Uren, R.B. Howman-Giles, J.F. Thompson) ; Gynecologic Tumors (M.A. Mahe, J.F.Chatal); Prostate Cancer (M.K. Haseman, N.L. Reed) ; Pulmonary Tumors (C.Aktolun); Thyroid Cancer (M.L.Nusynowitz, W.N. Tauxe); Breast Cancer (A.D. Waxman, C. Aktolun); Gastro-intestinal Tumors ( T. Mochizuki, W.N. Tauxe), Lymphoma (O. Israel, D. Front); Parathyroid Tumors (R. Taillefer) ; Bone Tumors (G.J.R. Cook, I. Fogelman, D.B. Collier, A.Z. Krasnow, W.N.Tauxe) ; Pain From Metastatic Bone Tumors (A.J. McEwan); Lymphoscintgraphy in Malignant Disease (G.N. Ege), Paediatric Tumors (H:R. Nadel, M.E. Stilwell) Special Techniques and Radiopharmaceuticals: PET Imaging in Oncology W.N. Tauxe, P.T. Kirchner, D.W. Townsend, C.C. Meltzer); Receptor Imaging in Oncology (A. Kurtaran); Somatostatin Receptor Imaging in Oncology (D.J. Kwekkeboom, E.P. Krenning); Monoclonal Antibodies in Oncology L.S. Zuckier); Assessment of Multidrug Resistance (G.D. Luker, K.E.Luker, V. Sharma, V.V. Rao, D. Piwnica-Worms); Evaluation of the Side Effects of Chemo- therapy and Radiotherapy on Other Organs (S. Del Vecchio, M. Salvatore); Subtraction Technique in Tumor Imaging Through Interactive Matrices (J.M.Joyce, M. Pacilio, W.N. Tauxe) Current Tumor Imaging Agents (H.M.Abdel-Dayem); Tumor Markers in Oncology(E. Seregni, E. Bombardieri) .....