- REDIRECT Template:Infobox bossTeratoma is a boss added to the Wrath of the Lamb DLC. It resembles a posthumous version of Fistula.
It acts like Fistula, but spawns 3 medium sections instead of 4. Teratoma also spawns small Spiders when the smallest part of it is destroyed. It is a boss in The Womb I and Utero I .
- Be careful to not split off too many parts at once. This could impair your ability to dodge.
- Anything that damages multiple enemies will help you speed up the battle (especially when a larger amount of sections are present on the screen)
- In biology, a teratoma is a tumor like growth that contains normal tissue from each of three germ layers (like hair, teeth or even bones). Like Fistula, these medical facts reference to their appearance (note the bones around Teratoma).