IMAGING
IMAJ | volume 25
Journal 2, February 2023
pages: 163
Not Every Pus Is Purulent
1 Department of Internal Medicine I, Sheba Medical Center, Tel Hashomer, Israel
2 Sackler Faculty of Medicine, Tel Aviv University, Israel
3 Department of Rheumatology, Wolfson Medical Center, Holon, Israel
Summary
A 65-year-old male with a medical history of diabetes mellitus, chronic kidney failure, and ulcerative colitis arrived at our facility with knee monoarthritis. The knee was tapped with 40 cc pus-like discharge [Figure 1A]. He was referred for a knee lavage with a working diagnosis of septic arthritis. The patient was afebrile, denied trauma, without neutrophilia on blood count.