Rheumatology
Clinical discussions on autoimmune diseases, biologic therapies, vasculitis, and musculoskeletal conditions.
Recent Discussions
Before re-challenging a patient with ICI after grade 1-2 pneumonitis, do you re-image to confirm resolution of pneumonitis?
Grade 1 pneumonitis is defined as confined to one lobe of the lung or <25% of the total lung parenchyma, while grade 2 pneumonitis is defined as involving more than one lobe of the lung or 25-50% of the lung parenchyma. Grade 1 pneumonitis is typically an incidental finding on CT in an asymptomatic ...
What is your approach to counseling patients on the safety and side-effect profile of a biosimilar compared to its reference biologic?
Relevant question as insurance companies may require a biosimilar over the reference biologic. According to the FDA, the spin-off (my term) must be "highly similar" to the original in both efficacy and safety. Approval is based on review of clinical trial data. As for my approach: until proven other...
Is there a period of time after which you would not resume ICI after a patient has had an irAE and required a prolonged steroid taper?
Typically if a patient has required treatment with steroids for four to six months, it was because their irAE was significant (grade 2-4) and refractory to initial treatment. If the patient received combination immunotherapy, such as anti-CTLA-4 and anti-PD-1 agents, one could consider resuming the ...
How would you approach management of asymptomatic hyperCKemia with + HMG-CoA reductase antibodies and biopsy findings suggestive of immune-mediated myopathy?
As anti-HMGCR antibody testing becomes more common, we are likely to see more false-positive results. Still, most patients with positive anti-HMGCR antibodies eventually require treatment. In the 2017 Johns Hopkins cohort (Tiniakou et al., PMID 28096458), only 4 of 104 anti-HMGCR-positive patients d...
What do you include in differential diagnosis when evaluating a patient with calcinosis cutis?
When evaluating the patient with calcinosis cutis, I first make sure that the patient indeed has calcinosis cutis. In general, there are two types of ectopic calcifications in soft tissues: metastatic and ectopic. Metastatic calcifications occur in the setting of abnormal. serum calcium and/or phosp...
What is the recommended fungal workup in an immunocompromised patient after 5 days of persistent fever?
For any patient with fevers, I focus significantly on any symptoms that a patient might have, like headache, diarrhea, and sinus symptoms, and work up a differential diagnosis based on possible pathogens in this area. If I am not finding anything, I would obtain a CT chest/abd/pelvis, as both invasi...
Can sIL2-R differentiate between active sarcoidosis affecting small airways vs uncontrolled asthma and guide treatment with methotrexte vs biologics?
This is an interesting question. Just to provide a little context, I used to have a sarcoidosis-focused clinic where one day each week I would see only sarcoidosis patients. I also had a day of seeing only neurosarcoidosis patients once per month, together with neuroimmunology. To be honest, since I...
What strategies have you found most helpful to improve adherence to hydroxychloroquine among patients with lupus?
In my practice, three approaches have been most useful: Make adherence measurable. I routinely check whole-blood hydroxychloroquine levels and review the trend with patients in a nonjudgmental way. This creates accountability and turns an otherwise “invisible” treatment into something concrete that ...
Do you routinely check HLA-B*58:01 allele status in patients of Vietnamese descent before starting allopurinol? Would you check it if they've already been tolerating it for years?
Of asian or african ameican descent
How would you approach management of a patient who develops squamous cell skin cancer while on abatacept?
I would discontinue abatacept. Several studies now have reported an increased risk of squamous cell cancer/non-melanoma skin cancers in patients on abatacept (Wadstrom et al., PMID 28975211, Simon et al., PMID 37932010) and in someone who actually develops this malignancy on the drug, I would hesita...