Rheumatology
Clinical discussions on autoimmune diseases, biologic therapies, vasculitis, and musculoskeletal conditions.
Recent Discussions
How do you clinically and diagnostically distinguish stiff skin syndrome from scleroderma?
One other disease consideration that one should differentiate is diabetic cheiroarthropathy, or "diabetic stiff hand syndrome." These patients can see decreased extension of the digits (often referred to as "Prayer sign" changes) and thickening of the skin in the digits. This can be present in 50% o...
In a patient with biopsy proven statin associated immune-mediated necrotizing myopathy who previously responded well to methotrexate but now presents with recurrent proximal leg weakness and rising CK/aldolase levels after several years of stability, what would be your preferred next-line treatment strategy?
That's an excellent question. I would approach this as a probable disease flare, after excluding potential triggers such as statin re-exposure, including over-the-counter supplements (e.g., "natural" cholesterol-lowering mushroom products that may contain statin-like compounds). In that setting, I w...
In a patient with high +SSA antibodies and distal renal tubular acidosis (RTA), but without sicca symptoms or other systemic features of Sjogren's, should immunomodulatory therapy with hydroxychloroquine or azathioprine be considered in an effort to reduce subclinical tubular inflammation and prevent progression of renal disease?
Renal disease can occur as an initial manifestation in the absence of sicca in SjÓ§gren’s disease (SjD) patients (Goules et al., PMID 31464673). This is important to realize for other systemic manifestations of SjD (e.g., cystic lung disease, tubulointerstitial nephritis, radiographic nephrocalcino...
Would you pursue a kidney biopsy in a patient with stable stage 1 AKI, bland urine sediment, and a positive MPO titer without systemic signs of vasculitis?
PR3-ANCA and MPO-ANCA are associated with substantially higher specificities and positive predictive values for ANCA-associated vasculitis (AAV) than the immunofluorescence patterns to which they usually correspond (C-ANCA and P-ANCA, respectively). However, false-positive results remain a concern. ...
What is your approach to explaining the role of the microbiome to patients with inflammatory arthritis?
The gut microbiota play a central role in modulating the inflammatory response. This is especially relevant to inflammatory arthritis, where the pathogenesis is quite well understood, especially as it relates to arthritis associated with inflammatory bowel disease. We also know that the diet is the ...
What is your approach to management of a patient with sarcoidosis who is asymptomatic, but demonstrates progressively enlarging mediastinal lymphadenopathy and rising soluble IL-2 receptor levels?
There are no diagnostic or prognostic biomarkers specific for sarcoidosis, and proposed surrogate markers for tracking disease activity, including soluble IL-2, serum angiotensin-converting enzyme (ACE), and even the presence of fluorodeoxyglucose (FDG)-avid lesions, have limited predictive value. F...
Do you regularly recommend an immunological workup for patients with suspected immunodeficiency or defer to immunology?
I defer after a very preliminary work-up based on the type of immunodeficiency expected. I try to direct the consult to a provider most likely to have expertise in the problem I suspect. Often, I suggest consulting with a provider at NIH.
What patient factors are most important when considering who needs a broader workup for osteoporosis prior to starting therapy?
A workup to rule out secondary causes must be done prior to starting therapy for osteoporosis. A good history and exam are recommended to look for any clues for modifiable factors. At a minimum, one should do CMP, 25-OH vitamin D, TSH, and a 24-hour urinary calcium or calcium/creatinine ratio should...
In patients treated with infliximab, do rates of immunogenicity vary based on underlying disease (RA, IBD, sarcoidosis, etc) and/or baseline disease activity?
Yes, rates of infliximab immunogenicity appear to vary based on underlying disease, with evidence showing higher rates for RA than IBD and spondyloarthritis, and tend to increase with higher baseline disease activity. Most patients tend to develop anti-drug antibodies within the first year, but this...
How do you counsel patients with osteoporosis and cervical spine osteoarthritis who are considering chiropractic cervical manipulation or traction?
I am concerned with the risks of actually causing a fracture or nerve impingement/damage. So, I would recommend against.