<prompt> Which isare features of stage lb2 cancer cervix:Microinvasive carcinoma with stromal invasion3 mmMicroinvasive carcinoma with stromal invasion5mmMicroinvasive carcinoma with 6mm carcinoma wi stromal invasion 5 mmSize of lesion 4 cm  <response>: STAGE INVASIVECARCINOMA Stage-I the carcinoma is strictly confined to cervix stage IA Stage-IA1 Stage IA2 Invasive carcinoma which can be diagnosed microscopically with deepest invasion 5mm-7mm stromal invasion of3mm depth,7mm horizontal extension stromal invasion 3mm -5mm,extension not more than 7mm Stage 1B IB1 IB2 clinically visible lesions limited to cervix uteri or pre clinical more than IA Clinically visible lesion less than or equal to 4cm clinically visible more than 4cm D.C.DUTTAS TEXTBOOK OF GYNECOLOGY,Pg no:342,6th edition 