A doctor operating on a cancer patient accidentally 'transplanted' the disease into himself, in what is believed to be a one-of-a-kind event. A 32-year-old man from Germany had been diagnosed with a rare type of cancer and was having a tumor removed from his abdomen. While in surgery, the doctor performing the procedure accidentally cut his hand, but the wound was disinfected and bandaged immediately. However, five months later, the 53-year-old surgeon noticed a small lump developing where he had injured himself months earlier and sought care. The lump turned out to be a malignant tumor and tests showed it...