Primary malignant neoplasms of the cecal appendix: unusual findings in acute appendicitis

Introduction: To evaluate the prevalence of appendix neoplasia correlating withpatient profile, histological types and frequency.Methods: Data collection was performed in the Pathology Department of a GeneralHospital, with the objective of identifying patients diagnosed with malignant cecalappendix tumors by histopathologic study of specimens from acute appendicitis.Results: The prevalence of malignant primary epithelial neoplasia of the appendixwas 1%. Fifty percent of the cases were neuroendocrine tumors, 35% were mucinous,and 15% were adenocarcinomas. The mean age at diagnosis was 41.3 (SD, 20.4)years (range16-81), with a women/men ratio of 3:1.Discussion: Appendiceal neoplasms are rare and should be suspected manlyin women over 40 years of age with suggestive symptoms of acute appendicitis.The size, location, extent, margins and presence of mucin are essential findings forthe treatment of these patients

Primary malignant neoplasms of the cecal appendix: unusual findings in acute appendicitis

Introduction: To evaluate the prevalence of appendix neoplasia correlating withpatient profile, histological types and frequency.Methods: Data collection was performed in the Pathology Department of a GeneralHospital, with the objective of identifying patients diagnosed with malignant cecalappendix tumors by histopathologic study of specimens from acute appendicitis.Results: The prevalence of malignant primary epithelial neoplasia of the appendixwas 1%. Fifty percent of the cases were neuroendocrine tumors, 35% were mucinous,and 15% were adenocarcinomas. The mean age at diagnosis was 41.3 (SD, 20.4)years (range16-81), with a women/men ratio of 3:1.Discussion: Appendiceal neoplasms are rare and should be suspected manlyin women over 40 years of age with suggestive symptoms of acute appendicitis.The size, location, extent, margins and presence of mucin are essential findings forthe treatment of these patients