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A new outbreak of monkeypox virus (MPXV) infection, a zoonotic infection endemic in Central and West Africa, is spreading throughout the world with new epidemiology and clinical features. Our aim was to characterize patients presenting to Dermatology emergency room with a MPXV infection between 15 May and 30 June 2022 in a tertiary hospital in Madrid, Spain. We collected 53 patients and describe their clinical, demographic and epidemiological characteristics and followed their evolution. Most of the patients were men who had sex with men with high‐risk sexual practices and no recent travels abroad. Most of them (91%) had had a sexually transmitted infection before. All patients had typical skin lesions consisting of vesicular‐pustular rash with central umbilication which was localized or disseminated. The most frequent extracutaneous symptoms were fever, painful regional lymphadenopathy and asthenia. Proctitis was present in more than one third of patients. All patients were diagnosed by real time polymerase chain reaction of samples obtained from skin lesions. Pharyngeal and/or rectal exudates demonstrated MPXV in 74% of patients. The current worldwide outbreak of MPXV infections shows epidemiological and clinical differences from previous ones. Clinicians should be aware of these characteristics to correctly diagnose this emerging disease. [ABSTRACT FROM AUTHOR]

Intralesional methotrexate (il‐MTX) has been used in cutaneous squamous cell carcinoma (cSCC) achieving important reductions in tumor size. However, there is a lack of controlled studies on this regard. The primary objective was to analyze the effect of il‐MTX on tumor size in cSCC. As a secondary objective, we evaluated its impact on the surgical approach. We conducted a prospective cohorts study that included 200 patients with histologically confirmed cSCC. Patients in Group 1 (Cases) received neoadjuvant treatment with il‐MTX prior to surgery. Patients in Group 2 (Controls) underwent scheduled surgery without prior neoadjuvant therapy. Clinical measurements of lesions were made at the time of inclusion in the study and before surgery. No intergroup statistical differences were found between the assessed variables. In Group 1, tumor size reduction occurred in 93% of the patients after il‐MTX therapy. Tumor surface was reduced by 54%. Complex reconstructions were needed in 15% of these patients. In Group 2, tumor surface increased by 33.1% and complex reconstructions were needed in 40% of patients. Intergroup differences were statistically significant (p < 0.001). Neoadjuvant Il‐MTX therapy achieves very important tumor size reduction and significantly simplifies surgical treatment. [ABSTRACT FROM AUTHOR]

Characterization of patients, surgery procedures and the risk factors for dermatofibrosarcoma protuberans (DFSP) recurrences is poorly defined. In this study, we aimed to describe the demographics, tumor characteristics and interventions of DFSP treated with Mohs micrographic surgery (MSS) to determine the rate and risk factors for recurrence. Data were collected from REGESMOHS, a nationwide prospective cohort study of patients treated with MMS in Spain. From July 2013 to February 2020, 163 patients with DFSP who underwent MMS were included. DFSP was mostly located on trunk and extremities. Recurrent tumors had deeper tumor invasion and required higher number of MMS stages. Paraffin MMS was the most frequently used technique. Overall recurrence rate was 0.97 cases/100 person‐years (95% IC = 0.36–2.57). No differences were found in epidemiological, tumor, surgery characteristics or surgical technique (frozen or paraffin MMS [p = 0.6641]) in terms of recurrence. Median follow‐up time was 28.6 months with 414 patient‐years of follow‐up. In conclusion, we found an overall low recurrence rate of DFSP treated with MMS. None of the studied risk factors, including MMS techniques, was associated with higher risk for recurrence. [ABSTRACT FROM AUTHOR]

An increasing number of publications have brought attention to COVID‐19‐associated cutaneous lesions. Histopathological descriptions and clinical correlation of the histopathological findings of COVID‐19 skin lesions are lacking. In this manuscript, we reviewed and described the histopathological characteristics of COVID‐19 infection cutaneous patterns reported in the literature. [ABSTRACT FROM AUTHOR]

Polansky et al.4 reported a case series of 20 patients with recalcitrant and extensive BP in which rituximab was administered; 75% of the patients studied, achieved a durable and sustained response after one year of treatment. First-line treatment includes topical and/or systemic corticosteroids (SC).1 Additional immunomodulatory/immunosuppressive drugs are needed to control BP patients in order to reduce steroid cumulative dosage and adverse events;1,3 however, they may not lead to disease control. Bullous pemphigoid (BP) is the most common autoimmune blistering disease.1 The tendency for BP incidence to increase is clear cut [S1]. [Extracted from the article]

Background: Safety is an important consideration in decisions on treatment for patients with moderate-to-severe psoriasis and the study of drug safety is the main purpose of the BIOBADADERM registry. The combination of a biologic agent and a conventional systemic drug [generally methotrexate (MTX)] is a common treatment in clinical practice. However, there is a paucity of evidence from real-world practice on the safety of such combination regimens in the treatment of psoriasis., Objectives: The primary objective of this study was to ascertain whether the use of regimens combining biologic drugs with MTX in the management of moderate-to-severe psoriasis increases the risk of adverse events (AEs) or serious AEs (SAEs). We compared monotherapy using tumour necrosis factor (TNF), interleukin (IL)-17 and IL-23 inhibitors with the use of the same drugs in combination with MTX., Methods: Using data from the BIOBADADERM registry, we compared biologic monotherapies with therapies that were combined with MTX. We estimated adjusted incidence rate ratios (aIRR) using a random effects Poisson regression with 95% confidence intervals for all AEs, SAEs, infections and serious infections and other AEs by system organ class., Results: We analysed data from 2829 patients and 5441 treatment cycles, a total of 12 853 patient-years. The combination of a biologic with MTX was not associated with statistically significant increases in overall risk of AEs or SAEs in any treatment group. No increase in the total number of infections or serious infections in patients receiving combined therapy was observed for any group. However, treatment with a TNF inhibitor combined with MTX was associated with an increase in the incidence of gastrointestinal AEs (aIRR 2.50, 95% CI 1.57-3.98; P < 0.002)., Conclusions: The risk of AEs and SAEs was not significantly increased in patients with moderate-to-severe psoriasis receiving different classes of biologic drugs combined with MTX compared with those on biologic monotherapy., Competing Interests: Conflicts of interest J.M.C. has participated as a speaker and/or advisor and/or principal investigator/senior investigator in clinical trials sponsored by for Celgene, Janssen, Lilly, Leo Pharma, Novartis, Pfizer, MSD, Biogen, Mylan, Amgen, AbbVie and Sandoz. A.G.-Q. acted as consultant and/or speaker for and/or participated in clinical trials as principal investigator and subinvestiator for AbbVie, Almirall, Amgen, Boehringer, Janssen, Leo Pharma, Lilly, Novartis, MSD, Pfizer-Wyeth and UCB. R.R.-D. acted as consultant and/or speaker for and/or participated in clinical trials as principal investigator for AbbVie, Almirall, Amgen, Boehringer, Janssen, Leo Pharma, Lilly, Novartis, MSD, Pfizer-Wyeth and UCB. A.S.-T. has served as a consultant and/or paid speaker for and/or participated in clinical trials sponsored by companies that manufacture drugs used for the treatment of psoriasis, including AbbVie, Celgene, Janssen-Cilag, LEO Pharma, Lilly, Novartis and Pfizer. M.L.-V. acted as a consultant and speaker and participated in clinical trials for Janssen-Cilag, AbbVie, Boehringer, Celgene, Pfizer, Novartis, Lilly, Almirall, UCB, Kyowa Kirin and Leo Pharma. E.H.-A. has served as consultant and/or speaker with Leo Pharma, Novartis, Janssen, Lilly, Celgene and AbbVie. P.d.l.C. acted as a consultant and/or speaker for Janssen-Cilag, AbbVie, MSD, Pfizer, Novartis, Lilly, Almirall, UCB, Biogen, Celgene, Amgen, Sandoz, Sanofi and Leo Pharma. O.B.-R. acted as a consultant and/or speaker for Janssen-Cilag, AbbVie, Pfizer, Novartis, Lilly, Celgene, Leo Pharma, Amgen, Boehringer, UCB and Almirall. L.L.-E. participated as advisory board member and received educational grants from Janssen, AbbVie, MSD, Lilly, Novartis, LeoPharma and Pfizer. I.B. acted as a consultant and/or speaker for and/or participated in clinical trials sponsored by companies that manufacture drugs used for the treatment of psoriasis, including Janssen Pharmaceuticals Inc., Almirall SA, Lilly, AbbVie, Novartis, Celgene, Biogen Amgen, Leo Pharma, UCB, Pfizer-Wyeth and MSD. M.F. has participated as speaker and/or advisor for Janssen, Lilly, Novartis, Pfizer, MSD, AbbVie Celgene and Almirall. A.M. acted as consultant and/or speaker for AbbVie, Almirall, Celgene, Janssen, Leo Pharma, Lilly, Novartis. L.R. acted as a consultant and speaker for Janssen-Cilag, AbbVie, MSD, Pfizer, Novartis, Lilly, Almirall, Celgene and Leo Pharma. J.R.-M. acted as a consultant and/or speaker for and/or participated in clinical trials sponsored by AbbVie, Almirall, Janssen, Leo Pharma, Novartis, UCB, Pfizer, Lilly, Amgen and Boehringer Ingelheim. G.C. has been reimbursed by Janssen, AbbVie, Novartis, Pfizer, MSD and Celgene for advisory service and conference attendance. C.G.-D. participated as advisory board member for AbbVie, Almirall and speaker for Janssen, Lilly and Celgene. C.P.-M. acted as a consultant and/or speaker for Janssen-Cilag, AbbVie, MSD, Pfizer, Novartis, Lilly, Almirall, UCB, Celgene and Leo Pharma. E.D.A. has participated as a speaker and/or and/or PI/SI clinical trials sponsored by Amgen, Almirall, Janssen, Lilly, Leo Pharma, Novartis, UCB and AbbVie. J.A.S.-P. has served as consultant and/or speaker with Leo Pharma, Novartis, Janssen, Lilly, Celgene, AbbVie, Amgen, Sanofi, Almirall and Pfizer. D.P.R.-G. has been reimbursed by Pfizer, Janssen, Celgene, AbbVie, Novartis and LeoPharma for advisory services and conference attendance. I.G.D. received travel grants for congresses from AbbVie, MSD, Pfizer and Sanofi., (© The Author(s) 2023. Published by Oxford University Press on behalf of British Association of Dermatologists. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Background: Limited information is available regarding the risk of incident liver disease in patients with psoriasis receiving systemic therapies., Objectives: To describe the liver safety findings of conventional and modern systemic therapies for moderate-to-severe psoriasis, and to compare the relative incidence rates of hepatic adverse events (AEs) for each drug., Methods: All the patients on the BIOBADADERM registry were included. Crude and adjusted incidence rate ratios (cIRR and aIRR, respectively) of hepatic AEs, using anti-TNF drugs as reference, were determined. Outcomes of interest were hypertransaminasemia, nonalcoholic fatty liver disease (NADFLD) and a group of other, less represented, hepatic AEs., Results: Our study included 3,171 patients exposed to systemic drugs (6279 treatment cycles). Incident hypertransaminasemia was the most frequent hepatic AE (incidence rate of 21 per 1000 patients-years [CI 95% 18-23]), followed by NAFLD (8 cases per 1000 patients-years [95% CI 6-10]). Methotrexate (aIRR 3.06 [2.31-4.4]; p  = 0.000) and cyclosporine (aIRR 2.37 [1.05-5.35]; p  = .0378) were associated with an increased risk for hypertransaminasemia when compared to anti-TNF-α agents. No differences were observed between different groups of biologics. Conventional therapies were not associated with new incident NAFLD., Conclusions: Comparative information of the incidence of hepatic AEs could facilitate drug selection in moderate-to-severe psoriasis.

Background: T-cell prolymphocytic leukemia (T-PLL) is a T-cell lymphoproliferative disorder that frequently involves the skin. The objective was to describe two cases of T-PLL with cutaneous involvement and to present a review of the literature concerning the clinical characteristics, differential diagnosis and treatment of these patients., Case Reports: 1) 79 year-old man, with a previous diagnosis of T-PLL based on a laboratory incidental finding. He had been treated with alemtuzumab, but it had to be interrupted due to recurrent infections. After interrupting the treatment, the patient developed a symmetrical rash on his extremities. The skin biopsy demonstrated TPLL infiltration. 2) 28 year-old man that presented with asthenia and lymphocytosis. He also showed a purpuric rash on his trunk and facial erythema. Histopathology of the skin and bone marrow confirmed the diagnosis of T-PLL with cutaneous involvement., Conclusions: T-cell prolymphocytic leukemia accounts for 2% of mature leukemias in adults. Skin involvement is reported in 20-50% of the patients. The characteristic features are facial involvement, purpuric lesions and symmetry of the rash, although there are atypical manifestations as well. Differential diagnosis includes other T-cell lymphoproliferative disorders with hematologic and skin involvement, such as Sézary syndrome. Patients with T-PLL may show cutaneous infiltration at the moment of debut or relapse of the disease. The skin is an accessible organ for taking samples to study and diagnose these patients., (Copyright: © 2020 Revista Medica del Instituto Mexicano del Seguro Social.)