Syphylitic Proctitis with Human HIV Mimicking Ulcerative Colitis: A Case Report
1. Abstract Syphilis is a chronic bacterial infection caused by Treponema pallidum. Syphilitic lesions may coexist with other sexually transmitted diseases, and their endoscopic features often overlap with those of inflammatory bowel disease, other infection types, and non-steroidal anti-inflammatory drug enteropathy.