It’s like something out of a story by Franz Kafka. Russian doctors found a fir tree growing in Artyom Sidorkin’s lung. In 2009, Sidorkin experiences severe chest pains and starts coughing up blood. He thinks he has cancer. The 28-year old visits the doctor and has an X-ray, which, at first, seems to confirm the cancer diagnosis. It’s later determined, however, that the mass isn’t a tumor. When the doctors open up his chest, they find a two-inch fir tree. “I thought I was hallucinating,” said Dr. Kamashev. “I asked my assistant to have a look. Come and see this: we have a fir tree.” Doctors believe Sidorkin somehow inhaled a seed that sprouted in his lung.