CGA and neoplasm: The immunohistochemical test results are as follows: Tumor cells (−3): CD34 (+), SMA (−), S-100 (−), CD68 (a few +), Ki-67 (+, approximately 10%), CDK4 (−), MDM2 (scattered +), ALK (−); (−7): TFE-3 (−), CD68 (scattered +), CD163 (partially +), S-100 (−), PAX-8 (−), CAIX (−), CK7 (−), CgA (−), Syn (−); (−21): CgA (−), Syn (−).