While the theoretical triggers of teratomas vary, they are often attributed to either a twin that failed to properly develop or a fault in the person’s germ cells (which specialize in the normal production of the body parts typically found in teratomas). Depending on where they form, a teratoma can often require radical action to save the patient’s life; as was the case for Tucker Roussin. According to CBS News, doctors realized that a teratoma was growing in Roussin’s chest cavity and that it would likely be fatal if left. Despite the fact that he had not even been born yet, the extraordinary surgeons managed to successfully remove the tumor while Roussin was still in his mother’s womb. 

Even still, removal can have lasting consequences. Per Rolling Stone, musician Joey Ramone of the Ramones was reportedly born with a teratoma that supposedly formed from his twin. Although it was removed, he suffered from ailments likely stemming from the operation before eventually passing away of cancer. Roussin and Ramone’s experiences show perfectly that there are no certainties in life, and that the struggle to remain healthy can be an extremely difficult endeavor.