“…The diagnostic yield of this type of procedure varies between 69.6% and 100%. 1,2,[4][5][6][7][8][9][10][11][12]15,[17][18][19][20][21] This wide variation may be explained by several methodological differences. Some articles consider only tumors; 1,2,5,9-11,15,18 others assess only a single, specific site (such as the pineal region) 2,10,13,18 or limit patients to a selected age range (e.g., children).…”