Dermatology
Clinical insights on skin conditions, dermatologic procedures, and treatment approaches from practicing dermatologists.
Recent Discussions
What incubation times do you use for PDT?
We have had good success with the zero incubation time + 2 back-to-back illumination cycles method described by Gandy et al. This method involves no pain and an overall shorter visit time compared to standard incubation protocols.Briefly, this method includes the following steps: Prep treatment area...
What is your approach to a patient with generalized morphea, no systemic involvement but a positive RNA Polymerase III?
I would perform age-appropriate cancer screening given the link between RNA pol III and cancer. Otherwise, I would simply monitor for onset of systemic sclerosis or other autoimmune disease symptoms.
Among the metastatic/unresectable melanoma patients you would historically treat with anti-PD-1 monotherapy, are you now recommending nivolumab/relatlimab instead?
Based on the published RELATIVITY-047 study, the nivo/rela combination leads to a superior median PFS of 10.2 mo (vs 4.6 mo for nivo alone) - both updated at ASCO 2022. At the most recent update at the ASCO 2022, the median survival has not been reached yet for the patients treated with nivo/rela (v...
How should the results of the ADVOCATE trial be applied in AAV patients who receive rituximab induction and maintenance therapy?
The following answer was jointly drafted by Dr. Peter Merkel and Dr. David Jayne:The data from ADVOCATE indicate that patients with granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA) treated with avacopan 30 mg twice daily and prednisone placebo were able to achieve remission w...
What is your treatment algorithm for dissecting cellulitis of scalp?
I view dissecting cellulitis as a variant of HS (and we know it's a component of the follicular tetrad along with acne conglobata and pilonidal cysts). Anti-TNFa inhibitors and isotretinoin are preferred therapies for this condition with a high level of efficacy.
Would you recommend sentinel lymph node biopsy at the time of wide excision for a 3 mm Merkel cell carcinoma of the cheek/lateral canthus?
Unlike melanoma and certainly NMSC, MCC is highly unpredictable in nature, with clinical lesion size having little clinical prognostic value. As such, it appears that SLNB is valuable in many cases for the purposes of prognosis and in determining the need for adjuvant systemic therapy and radiation....
Do you obtain MRI for cutaneous SCC with microscopic PNI to assess for gross perineural tumor spread?
I would recommend both an MRI as well as consulting the pathologist regarding the exact nature of the PNI. We had an experience with more than 100 patients (Sapir et al., PMID 27475277). Those with gross PNI (evidenced by MRI, with or without cranial nerve deficit) and microscopic extensive PNI (>2 ...
Are there particular subsets of AAV patients in which avacopan is more effective?
The following answer was jointly drafted by Dr. Peter Merkel and Dr. David Jayne:Patients in the ADVOCATE trial were stratified at entry according to time of diagnosis (new/relapsing), diagnosis (GPA/MPA), ANCA serotype (PR3/MPO), and background immunosuppressive (cyclophosphamide/rituximab) with re...
In a patient with high-risk cutaneous squamous cell carcinoma of the face with extracapsular extension after ipsilateral neck dissection and rapid contralateral cervical nodal recurrence, what is the optimal management?
In various published series, around half of patients fail to achieve a complete response to cemiplimab. From the clinical details, the current active area of disease appears to be the contralateral neck with no distant disease. Curative treatment is preferred. C-POST trial established surgery + adju...
How do you explain the use of an AI scribe to patients the first time it is used in their care?
I use an AI scribe in my outpatient clinic, and around 90–95% of my patients agree to it. I obtain consent at the start of each visit and make it clear that it's completely optional—that they can say no at the start or change their mind at any point in the visit, with no impact on their care. I also...