Sorry I didn't update on my daughters dog's neck lump sooner, but I've been lounging around on the beach in Spain. Turn's out it WAS the microchip. It had tracked down and was lodged very close to her spine. We have decided not to have another microchip but to go for tattooing. We now have to decide on a tattoo. My daughter favours LOVE in one ear and HATE in the other. I quite fancy a rose and I LUV MUM. Or maybe an anchor and a naked woman, or LABS RULE. The possibilities are endless.