Retrospective Analysis of the Prognostic Factors That Influence Treatment Response and Survival of Patients with Cancer of Unknown Primary

Background Cancers of unknown primary site (CUPs) are heterogeneous group of metastatic tumors for which a standardized diagnostic work-up could not recognize the site of origin at the time of diagnosis. Cancer registries around the world report the incidence of CUP in the range of 3%–5% of all malignancies, worldwide the overall age-standardized incidence per 100.000 people per year is 4–19 cases. CUP therefore ranks among the top 10 commonest malignancies. CUP occurs equally in both males and females, at average age 60 years old. Incidence of CUP in Egypt is 6.1%in males and 5.5% in females. Aim of the Work to retrospectively identify the prognostic factors that influence treatment outcome and survival of patients diagnosed with cancer of unknown primary treated patients at Clinical Oncology departments at Ain Shams University Hospitals (ASUH) and Helwan University Hospitals by retrospective analysis. Patients and Methods At the department of clinical oncology, Ain Shams University, 102 patients with cancer of unknown primary were identified in the period between January 2012 and December 2017, all patients data was collected and reviewed. The primary end point of this study is to identify different prognostic factors that influence treatment response and OS in 102 patients with CUP in the period from January 2012 to December 2017. Results Patients with PS 1, with no comorbidities showed better treatment response, also Patients younger than 65year, presented with PS1, with no comorbidity had longer survival. Conclusion CUP has a poor prognosis. Some prognostic factors that affect response to treatment and survival in these patients, which may be identified.