ABSTRACT
INTRODUCTION: Incidence of Second Primary Malignancy (SPM) after successful treatment of primary is increasing and may cause the problem for optimal treatment. AIM: This study was conducted retrospectively to analyse incidence, disease free survival between malignancies, pattern of treatment and outcome. MATERIALS AND METHODS: Sixteen out of 22 patients of previously treated cases of head and neck cancer those develop SPM of head and neck region managed over a period of January 2012 to December 2015 in Department of Radiotherapy-II, Pt. BD Sharma PGIMS, Rohtak were analyzed retrospectively. Sixteen patients with unresectable disease were given reirradiation with external beam radiotherapy. RESULTS: Median age of presentation of first malignancy was 27 years (Ranged 26 -65 years), whereas median age was 60 years for second malignancy (range 45-71 years). All patients were smokers during first malignancy; 87.5% (14/16) had historyof smoking during second malignancy. Oropharynx (50%) was most common site of presentation of primary tumor whereas oral cavity was most common site of presentation in second primary tumor. CONCLUSION: Incidence of Second primary head and neck tumor after successful treatment for primary Head and neck cancer are increasing due to newer treatment strategies, longer survival and follow up. Reirradiation, surgery and or chemotherapy are treatment modalities. However second primary tumor of this region are associated with poor prognosis.
