TY - BOOK AU - Yasser Gaber Ali AU - Haitham Fouad Abdelhameed , AU - Hosna Moustafa , AU - Tzu - Chen Yen , TI - Definition of risk groups in oral cavity squamous cell carcinoma patients and prediction of their outcomes by using ¹⁸F-FDG PET/CT / PY - 2011/// CY - Cairo : PB - Yasser Gaber Ali , KW - OSCC KW - Related KW - Tumor N1 - Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Nuclear Medicine; Issued also as CD N2 - Post - operative radiotherapy ( RT ) or chemoradiation ( CRT ) is indicated in the presence of adverse features " extracapsular nodal spread , positive margins , pT3 or pT4 primary , N2 or N3 nodal disease , selected pT2 N0- N1 disease , nodal disease in levels IV or V, perineural invasion , vascular embolism " UR - http://172.23.153.220/th.pdf ER -