Since immunohistochemical testing remains a comparatively easy and cheap method and histopathological testing remains a standard part of tumor diagnostics, our study may have relevance from a practical point of view, whereby the intracellular testing of tumor tissues for Hsp90 and GHRH-R could potentially be used routinely and easily in clinical practice, if further validating research is conducted. This evidence concerns the gene GHRHR and neoplasm.