A thymic medullary epithelial cell considered to be a post-AIRE cell. This group of AIRE-mTECs is heterogeneous and also includes mTECs within Hassall's Corpuscles. [ http://www.ncbi.nlm.nih.gov/pubmed/20861360 http://www.ncbi.nlm.nih.gov/pubmed/32079746 http://www.ncbi.nlm.nih.gov/pubmed/16121185 http://www.ncbi.nlm.nih.gov/pubmed/24084687 http://www.ncbi.nlm.nih.gov/pubmed/17067941 http://www.ncbi.nlm.nih.gov/pubmed/33597545 ]