Thank you so much for your generous insight. He wants to start treatment right away. I called an hemo-oncologist from Northwestern Memorial in Chicago and he suggested due to the early stage and being localized in only one side of the groin that "watch and wait" might be something he'd recommend, but couldn't make a definitve recommendation without seeing all my medical records. But "watch and wait" seems pretty scary too, just waiting for the eventual hammer to drop. And because MCL is considered an aggressive form, I fear waiting would eventually cause it to spread further and make treatment more difficult.