<prompt> Sections from a solid-cystic unilateral ovarian tumor in a 30-year old female show a tumor composed of diffuse sheets of small cells with doubtful nuclear grooving and scanty cytoplasm. No C -Exner bodies are seen. The ideal immunohistochemistry panel would include -Vimentin, epithelial membrane antigen, inhibin, CD99Desmin, S-100 protein, smooth muscle antigen, cytokeratinChromogranin, CD45, CD99, CD20CD3, chromagranin, CD 45, synaptophysin  <response>: This patient is having granulosa cell tumor of the ovary which is characterized histologically by :Diffuse sheets of round and oval cells Inconspicuous groove and folds in nuclei - coffee bean appearanceScant cytoplasmGranulosa cell tumor is positive for i Vimentin, ii Inhibin, iii CD99Epithelial membrane antigen is positive in surface epithelial tumor. 