Mesh : Abdominal Neoplasms / genetics metabolism pathology Adult Base Sequence Desmin / analysis Diagnosis, Differential Genitalia, Male / chemistry pathology ultrastructure Humans Immunohistochemistry Keratins / analysis Male Molecular Sequence Data Mucin-1 / analysis Neural Cell Adhesion Molecules / analysis Oncogene Proteins, Fusion / genetics Paraffin Embedding Phosphopyruvate Hydratase / analysis RNA, Messenger / genetics Reverse Transcriptase Polymerase Chain Reaction Testicular Neoplasms / genetics metabolism pathology Vimentin / analysis