When offering PCI for SCLC patient, do you include C1 in the treatment field or do you stop at the base of the skull?  

I do bottom of C1 like most WBRT. I still go to bottom of C2 for LMD cases but I'm not sure that is necessary for PCI. Not aware of any direct level 1 evidence to address this, more of historical practice based on 2D. With FIF and VMAT CSI techniques and better IGRT, ensuring easy match line and fie...

Great question. How low do you go in SCLS PCI?So, back in the day, as a young Rad Onc guy, it was common practice to treat SCLC related brain RT issues down to C-spines levels C2/3. It was referred to back then as the 'German Helmet' because of its appearance on radiological imaging then. The reason...