The "silver dollar" or "coin-on-end" vertebra sign.
Roller BL, Dyer RB.
Abdom Radiol (NY). 2020 Jan;45(1):247-248. doi: 10.1007/s00261-019-02244-4.
Immunosenescence and Inflamm-Aging As Two Sides of the Same Coin: Friends or Foes?
Fulop T, Larbi A, Dupuis G, Le Page A, Frost EH, Cohen AA, Witkowski JM, Franceschi C.
Front Immunol. 2018 Jan 10;8:1960. doi: 10.3389/fimmu.2017.01960. eCollection 2017.
Two sides of the same coin: protective versus pathogenic mesentery in inflammatory bowel diseases - a comprehensive review.
Lu H, Feng Z, Aden K, Cong Y, Liu Z.
Int J Surg. 2025 Nov 1;111(11):8349-8362. doi: 10.1097/JS9.0000000000003075. Epub 2025 Jul 15.
Can we use ''coin sign'' image to predict block success after performance of sciatic nerve block?
Gürkan Y, Ohtaroğlu ÇN.
Agri. 2012;24(3):142-3. doi: 10.5505/agri.2012.96636.
John Thomas sign--a memorable but misleading sign in hip fractures.
Murphy IG, Murphy CG, Heffernan EJ.
Orthop Traumatol Surg Res. 2014 Apr;100(2):199-202. doi: 10.1016/j.otsr.2013.12.017. Epub 2014 Feb 26.
Neck Radiograph Halo Sign: Do Not Be Fooled.
Baharudin N, Gendeh H, Teh HM.
Cureus. 2023 Apr 23;15(4):e38029. doi: 10.7759/cureus.38029. eCollection 2023 Apr.
Two sides of the same coin? A review of the similarities and differences between idiopathic pulmonary fibrosis and rheumatoid arthritis-associated interstitial lung disease.
Matson S, Lee J, Eickelberg O.
Eur Respir J. 2021 May 13;57(5):2002533. doi: 10.1183/13993003.02533-2020. Print 2021 May.
Pulmonary Embolism and Atrial Fibrillation: Two Sides of the Same Coin? A Systematic Review.
Bikdeli B, Abou Ziki MD, Lip GYH.
Semin Thromb Hemost. 2017 Nov;43(8):849-863. doi: 10.1055/s-0036-1598005. Epub 2017 Feb 14.
Crescent sign in pulmonary hematoma.
Bard R, Hassani N.
Respiration. 1975;32(3):247-51. doi: 10.1159/000193654.
Placental calcifications: a clue for the identification of high-risk fetuses in the low-risk pregnant population?
Mastrolia SA, Weintraub AY, Sciaky-Tamir Y, Tirosh D, Loverro G, Hershkovitz R.
J Matern Fetal Neonatal Med. 2016 Mar;29(6):921-7. doi: 10.3109/14767058.2015.1023709. Epub 2015 Mar 19.
