HLA-B27 may be a phenotypic expression of axial spondyloarthritis (SpA), according to a large international study. The study found patients with axial SpA who were positive for HLA-B27 had more severe radiographic damage than those who were negative for HLA-B27, and three quarters of study patients with ankylosis spondyloarthritis were HLA-B27 positive.
When it comes to systemic lupus erythematosus (SLE) and cardioÂvascular events (CVEs), the rheumatology community is woefully lacking in information, say researchers from the University of California, Los Angeles (UCLA) David Geffen School of Medicine and Cedars-Sinai Medical Center. Their recent work on biomarkers associated with an increased risk for cardiovascular events in women with…
Lipoma arborescens is a rare, benign intra-articular lesion characterized by diffuse replacement of synovial tissue by mature adipocytes, causing a villous lipomatous proliferation of the synovial membrane.1 Typically, this is a monoÂarticular condition, with the knee being the most commonly affected although it has been rarely reported to occur in an oligo-/polyarticular fashion and in…
Cannabis arteritis mirrors thromboÂangiitis obliterans in its clinical and arteriographic presentation, but its relevant exposure is cannabis rather than tobacco.1 Whether cannabis arteritis is a subset of thromboangiitis obliterans or a unique pathologic entity is debatable. Delta-9-tetrahydrocannabinol, the primary psychoactive component of cannabis, is a peripheral vasoconstrictor.2 This offers mechanistic insight into how cannabis may…
If you ever want to be depressed, turn to the internet. This might strike some of you as a truism. Certainly, between the pandemic and the war in Ukraine, it is difficult to open your browser without being smacked in the face by a dismally depressing piece of news. In this parÂticular case, however, I’m…
Polyarteritis nodosa (PAN) is a systemic necrotizing vasculitis that typically affects medium-sized muscular arteries. The clinical subsets of PAN are idiopathic, generalized, secondary hepatitis B virus (HBV) associated and cutaneous PAN. These clinical subsets are important because of their therapeutic implications. Virtually any organ system can be affected in generalized PAN, but this vasculitis tends…
The 1999 Institute of Medicine report To Err Is Human gave a sobering depiction of the magnitude and consequences of medical error.1 The report concluded that approximately 98,000 people die in hospitals annually due to preventable medical errors. Of all the errors detailed in this report, diagnostic errors have since been determined to be the…
In March A&R, Remaeus et al. reported on the results of their study, which evaluated pregnancy outcomes in relation to anti-rheumatic treatment before and during pregnancy, as a proxy of disease severity in pregnant women with psoriatic arthritis (PsA), compared with those without PsA.
Over the past few years, biosimilars and other new drugs have been introduced to treat rheumatic illnesses. Some of the conditions we treat have numerous drug options; others have few or only off-label options. This series, Rheumatology Drugs at a Glance, provides streamlined information on the administration of biologic, biosimilar and other medications used to…
CD19 chimeric antigen receptor T (CAR-T) cell therapies may have the potential to treat rheumatic diseases in which current therapeutic options are limited, such as lupus, interstitial lung disease and systemic sclerosis.