There is a limited information about the historical perspective of testicular germ cell tumors. Leydig cells were first discovered by Franz Leydig who was a German anatomist in 1870.
Could you explain what testicular cancer is?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: Could you explain what testicular cancer is? [/INST] \n There is a limited information about the historical perspective of testicular germ cell tumors. Leydig cells were first discovered by Franz Leydig who was a German anatomist in 1870.</s>