Female? Maybe. It looks to be over age 2 and I am not seeing big jowls, fat bumps on the top of the head or a large dewlap but thats not 100 percent , just a guess. underweight males or young ones can look this way too.
If they are not willing to touch the lump then I suppose theres zero chance of looking under the back legs for femoral pores .
When are you supposed to get the iggie?