I just had MRIs done and they found on at my T4. Both my parents had lung cancer, with tumors in that same spot. Everyone I speak to say it's benign, but everything I'm seeing about atypical meningioma is it is neither benign nor malignant, but it is an aggressive tumor. I understand your concerns and fears because this hurry up and wait and see approach is not in my wheelhouse. Both my parents had stage 4 lung cancer at detection, both had a tumor on the T4 vertebrae, both were in agony. I'm in so much pain every day it is a struggle not to take the self checkout, but I remember my son, my reason to keep going and fighting another day. I have Chiari Malformation and have had 2 craniotomies within the last 3.5 years. My life has gone from active and taking care of everyone else to now not even being able to do simple tasks by myself, my son is now the parent to me. My memory is crap, the pain is constant, my inability to be active and independent is all wearing on me. Please remain strong, remain positive (even though so difficult), and keep us updated. I'm glad to have found a forum that is legit to speak up in.