A 55-year-old male presented to surgery OPD with complaints of scrotal swelling. Patient also gives a history of anorexia and weight loss. On examination the swelling was hard. All of the following investigations are advised except:
Incisional biopsy High frequency ultrasonography of scrotum Serum human chorionic gonadotropin (hCG) levels Serum lactate dehydrogenase (LDH) levels