In a patient with a large condyloma adjacent to a squamous cell carcinoma of the anal canal being treated with chemoradiation how would you incorporate the condyloma in the target volume if it is PET negative and would it receive a different dose?  

I do not entirely agree.  First, I do use PET scans in anal cancer as I am very concerned for metastatic disease if there are PET positive nodes, regardless of the CT size. This is not so useful in the groin where there can be inflammatory nodes that are PET positive.  However, I change my...

I do not use PET scans to decide anything in the treatment of SCCa of the anal canal. The radiation dose is based on the size of the primary and enlarged node as seen on CT imaging.  Large, even very large condylomas respond well to radiation, but the responses are not always durable, and these...