PRL and neoplasm: Postoperative maximal tumor diameter correlated with Knosp grade (<i>p</i> = 0.02); CAM 5.2 pattern (densely/sparsely granulated/mixed densely and sparsely granulated) was correlated with postoperative PRL level (<i>p</i> = 0.002), and with ki-67 (<i>p</i> < 0.001).