"T1: iso to hypointense"
"T2: low signal on FLAIR and T2"
"T1 C+ (Gd): varies from none to moderate enhancement"
"T2*: mild blooming"
"They demonstrate extensive calcifications and a nodular chondromyxoid matrix with an amorphous quality and fibrovascular stroma. The spindle and epithelioid cells surrounding the matrix showed positive staining with antibodies against epithelial membrane antigen (EMA) 1-3. They are S100 and GFAP negative 3."
"CAPNONs are usually solitary extra-axial, or less frequently intra-axial, masses 1-4. An understanding of aetiology remains elusive with reactive, metaplastic and even neoplastic processes having been proposed 3,5."