Yeah sure! It will be hard bc you'll basically be cutting open a friend, but you can push though it and think of it as helping science. If she is struggling that much than she for sure is on her way out, sorry about it.
Basically, just use a razor blade or break-away blade, or sizzors or scalpel and cut the mass from her body,then cut the mass in half and describe what it looks like, or even a picture. Wait til she has passed, but soon after, her body will begin decomposing quickly so don't wait...I'm assuming you dont have a light microsope so the pic or description of the inside of the mass should suffice.
All the best,
Andrew