
sorry to hear about your boy,could he have been stung?as this is the time of year for wasps.It could be as Toolz said a blood fillled lump which could have resulted from a bump,one of our Boxers had this on one of her ears due to scratching.Also does he have any access to a cat as if he had the most tiniest of scratch it could result in a abcess.I hope all goes well at the vets debby.