Question: Tomatoes in my garden have formed blisters or
translucent areas on the green shoulders---what caused the problem?

Answer: I have those same blisters and translucent areas on my
shoulders when I expose my lily-white body to the burning rays of the
sun. Your tomato shoulders have cooked and sunburned. The tomato will
ripen normally most of the time and the burned places will not peel or
look nearly as bad as my lily-white-body-turned-lobster-red. It won't
hurt as bad either!!