Rheumatology
Clinical discussions on autoimmune diseases, biologic therapies, vasculitis, and musculoskeletal conditions.
Recent Discussions
How would you interpret a temporal artery biopsy demonstrating focal chronic inflammation in the adventitia associated with small adventitial vessels and nerves without inflammation of the intima and media and without giant cells?
Peri-adventitial inflammation seen in temporal artery biopsies is generally a non-specific finding. This was demonstrated nicely in a recent histopathological study from Mayo Clinic evaluating temporal artery samples from autopsy cases. Over 40% of temporal arteries from older individuals (with no h...
At what point is a skin biopsy indicated in patients with neuropathy?
Skin biopsy is indicated when small fiber neuropathy is suspected- that is, a patient with usually painful paresthesias- positive sensory symptoms, and less often negative sensory symptoms alone, and normal EMG/NCS. Clinical exam usually, but not always, will show some signs of small fiber involveme...
What is your approach to monitoring for hepatic fibrosis in chronic methotrexate use?
Historically, in lower-risk patients (e.g. rheumatoid arthritis patients who are less likely to have metabolic syndrome and are treated with lower doses), guidance has been to proceed with liver biopsy if repeated tests show elevated liver enzymes or hypoalbuminemia. In higher risk patients, (e.g. p...
Do you have concerns with the use of oral contraceptives in patients on JAK inhibitors given the black box warning for thromboembolic events?
I would be concerned with the use of estrogen-containing OC especially in patients who are smokers, obese, and/or with a strong family history of CV disease. However, I know many rheumatologists who would still cautiously prescribe JAK inhibitors to these patients, particularly in the absence of add...
What suspected myositis manifestations drive you to start empiric therapy before the work-up is complete?
When evaluating a patient with myositis, I would consider starting immediate therapy when 1) my suspicion of myositis is high (i.e. characteristic rashes, compatible constellation of symptoms, very high CPK) and 2) the symptoms are severe. It would be the severity of the symptoms that would drive ho...
What is your approach to elevated CK in patients without clinical or serologic evidence of immune mediated myopathy?
Thanks for your great question: This is especially important because we are much more likely to see patients sent for "elevated" CPK than patients with myositis.Unfortunately, I think that the answer to the approach depends a lot the circumstances, including (1) how elevated is the CPK, and (2) how ...
How would you approach management of a young male patient with discoid lupus who has had minimal response to hydroxychloroquine (and subtherapeutic whole blood levels) who continues to use tobacco products?
First, is he taking his HCQ (55% chance he is not)? Check a trough whole blood HCQ drug level and you want it to be 1000 - 1200 ng/mL (that is my goal in uncontrolled lupus; 750 - 1200 is fine in lupus under remission per Garg et al., PMID 37667434). Thanks, @Dr. First Last for reminding me. :-) Wh...
Do you find HZV titers useful in diagnosing shingles sine herpete?
VZV sine herpete is an infection/disorder frequently considered but rarely confirmed and represents an atypical presentation of VZV reactivation in the cranial nerve, spinal nerve, viscera, or CNS in the absence of classic cutaneous findings.Serum IgG VZV in isolation is not useful unless followed s...
What is your approach to work up for patients referred for early onset osteoarthritis?
Great question and one that comes up fairly often. I created a mnemonic for causes of "secondary osteoarthritis" & these etiologies drive the workup - this might be appropriate for a person with OA in an unusual place or who is unusually young for having it. Here it is: THE CHARMING T- trauma H - ...
Do you avoid hyaluronic acid injections in patients with chondrocalcinosis on imaging?
The association between viscosupplementation and CPPD flares is reported but not truly well studied. There is a nice case series by Bernardeau et al., PMID 11302877 entitled “Acute arthritis after intra-articular hyaluronate injection: onset of effusions without crystals” in Ann Rheum Dis 2001;60:51...