TY - JOUR A1 - Mankada, Sakina A1 - Parikh, Ankita A1 - Roy, Parag A1 - Kichloo, Amit A1 - Suryanarayana, Ubrangala T1 - Radiotherapy as a primary treatment modality for squamous cell carcinoma of tongue in a case of xeroderma pigmentosum Y1 - 2019/1/1 JF - Journal of Current Oncology JO - J Curr Oncol SP - 29 EP - 32 VL - 2 IS - 1 UR - http://www.https://journalofcurrentoncology.org//article.asp?issn=2589-8892;year=2019;volume=2;issue=1;spage=29;epage=32;aulast=Mankada DO - 10.4103/JCO.JCO_4_19 N2 - Radiation therapy (RT) represents a important modality for treatment of malignancies in patients of xeroderma pigmentosa (XP). There are only few reports of radiation being primary treatment and thus we report a case of twelve year old female with XP presented with squamous cell carcinoma of tongue and lower lip treated with radiation at our institute. DNA damage by radiation is repaired by base excision repair, non homologous end joining and homologous combination in contrast to XP in which defect lies with nucleotide excision repair genes and therefore clinical and cellular response to RT is similar in XP as seen with other patients. ER -