When can brachytherapy be used alone in the definitive treatment of FIGO IA1/IA2 medically inoperable cervical cancer?  

Certainly, IA1 patients can be managed with brachytherapy alone, since the risk of LN metastases is very small. Of course, conization is another, simpler, option in selected cases. The use of brachy alone in IA2 patients is more controversial, and one can say that it would not be considered appropri...