Endoscopic findings of gastric syphilis. Infiltrative lesion with pyloric stenosis (A). Multiple gastric ulcers with heaped nodular edges (B). Diffuse superficial ulcers with mucosal friability and bleeding (C). Thickened folds (D).⁴²

Korean J Gastroenterol 2023;82:269~281 https://doi.org/10.4166/kjg.2023.139