Brilliant! Surprised their organs appear to resemble human/mammalian ones a bit though... maybe that's the whole purpose? reproduce aliens in A51 for human organ donations?
a photorealistic image featuring a parody of the kids game Operation with a greyish-green Area 51-type alien as the patient ; the game title is "Area 51 Alien Autopsy" with "TOP SECRET" labels ; game card says "HARVEST LIVER FOR $500" ; intricate details; deep depth of field ; soft white lighting