Table 1 Expression profile of UPS tumor based on immunohistochemical staining of surgically resected tumor tissue

Positive

INI-1 (+), vimentin (+), S-100 (focally+), p53 (partially+), Bcl-2 (partially+), CD99 (+), calponin (sporadically+), Ki-67 (+, 15%), transducin-like enhancer of Split 1 (TLE1+), melan-A (focally weak+).

Negative

AE1/AE3 (−), desmin (−), CD31 (−), caldesmon (−), CK (−), EMA (−), ALK (−), SMA (−), CD117\c-kit (−), CD34 (−), MyoD1 (−), myogenin (−), CK/LMW (−), CK5/6 (−), 34βE12 (−), CAM5.2 (−), HMB45 (−), SOX10 (−), MITF (−).