In osteoarthritis you can have hard nodules in you DIP and PIP joints of the hands. They are termed Heberden and Bouchard nodes respectively. Think of where they are: heberden are high, and bouchard are at the bottom. Mnemonic from Dr. Suffiya Hussain!
References:Doherty, M., & Abhishek, A. (2021, September 24). Clinical manifestations and diagnosis of osteoarthritis. UpToDate. Retrieved February 25, 2022, from https://www.uptodate.com/contents/clinical-manifestations-and-diagnosis-of-osteoarthritis?search=heberden&source=search_result&selectedTitle=1~8&usage_type=default&display_rank=1#H3603739713Published:February 25, 2022
