Dysplasia in Barrett’s Esophagus: Possible Tools for Diagnosis.- Survival of Patients with Early Gastric Cancer Operated on for Cure.- Colorectal Biopsies.- The Histologic Classification of Schistosomal Egg Polyps and Their Clinical Significance — An Analysis of 272 Cases.- Recent Advances in Ischemic Bowel Disease.- Anterior Mediastinal Tumors: A Clinicopathologic Study of 100 Cases, with Emphasis on Immunohistochemical Analysis.- Retiform Wolffian Adenoma.- Primitive Neuroectodermal Tumor of the Testis: Report of a New Case with Cytogenetic and Cell Culture Analysis.- Medullary Carcinomas.- Non-Calcitonin Genes-Derived Neurohormonal Polypeptides in Normal and Pathologic Thyroid C Cells.- Ultrastructural and Immunohistochemical Modulations of Malignant Peripheral Nerve Tumors.