Tonsillitis, appendicitis, arthritis, bronchitis, plantar fasciitis, tendinitis, dermatitis, colitis, otitis, urethritis, sinusitis, and on and on. Itis means inflammation.
Just pick your body part, add inflammation, and you’ve got your favorite itis. The tonsils and appendix are just useless bits that natural selection hasn’t discarded yet. That means their itis can be cured by removing them. Alas, the other itis require in situ cures and that’s a real pain, pardon the pun. Too bad Indiana and Wisconsin can’t cure democratitis by removing the useless bits 🙂