18 January 2026
: Case report 
Multi-Pathogen Knee Infection, Including Treponema pallidum and Brucella: A Case Report
Challenging differential diagnosis, Rare disease, Clinical situation which can not be reproduced for ethical reasons
Youhan Yang
ABCDEF 1, Haitao Chen ADEF 1, Yinxian Wen ACDE 1, Qinglong Chai BCE 1, Yi Hua BEF 1, Xu Yang ACDEF 1*, Liaobin Chen ADG 1
DOI: 10.12659/AJCR.950156
Am J Case Rep 2026; 27:e950156
Figure 3 Preoperative MRI findings of the knee joint. The degenerative disease of the knee joint is serious, and the structure of keen joint is seriously damaged.