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The purpose of this study was to determine the prevalence of joint, enthesis, bursa, and tendon ultrasound findings in large and medium joints of young, healthy individuals. Ultrasound assessment of large and medium joints, bursae, tendons, and entheses was performed in healthy individuals below the age of 30 years. Participants also underwent bioelectrical impedance analysis and conducted supervised weight training to determine maximum strength. The prevalence of ultrasound findings was calculated and a binary logistic regression model was applied to evaluate factors associated with the present findings. Fifty-one healthy individuals (52.9% female) with a mean age of 23.7 years were included in this study. Joint effusion in at least one joint was observed in 72.6% of the individuals (n = 37) and entheseal pathology in at least one enthesis was detected in 27.5% (n = 14). A binary logistic regression model indicated a significant association between reported hours of sports activity per week and the prevalence of effusion in the knee (p = 0.017). In addition, associations were observed between entheseal pathology in at least one entheseal site and body mass index (BMI) (p = 0.015) as well as fat mass index (p = 0.026). Joint effusion in large and medium joints, as well as entheseal hyperperfusion, bursal effusion, and tendon sheath effusion, are found in healthy individuals. Hours of sports activity per week, BMI and fat mass index showed significant associations with the findings in joints and entheses. [ABSTRACT FROM AUTHOR]

Eosinophilic fasciitis (EF, also known as Shulman syndrome) is an uncommon connective tissue disease characterized by inflammatory thickening of the fasciae as well as swelling and hardening of the skin. It mostly affects the lower extremities. Swollen and indurated skin, together with the groove sign, are typical clinical signs. So far, biopsy evidence of inflammation and thickening of the fascia has been the gold standard for diagnosis. Magnetic resonance imaging (MRI) is mentioned in the literature as an alternative method for confirming the diagnosis. We present a case of asymmetric EF in a 54-year-old German male. He came with painful induration of the right forearm, with a characteristic groove sign and limitation of motion of the right hand. The blood count revealed eosinophilia with 0.57 G/l or 9.6% (normal: 0.05-0.5 G/l and 0.5-5.5%), ANA and ENA were negative. The diagnosis was confirmed histologically and we were able to detect a thickened fascia in MRI and ultrasound imaging. The EF also appeared in the left lateral malleolus during the course of the illness. Treatment was carried out with prednisolone and methotrexate., (© 2022. The Author(s).)

Background: Joint effusion and enthesitis are common ultrasound findings in rheumatic diseases such as rheumatoid arthritis or spondyloarthritis. However, changes of joints and entheses were not only observed in patients but also in physically active individuals and athletes., Objectives: The purpose of this study was to evaluate joint, entheseal, bursal and tendon musculoskeletal ultrasound (MSUS) findings in large and medium joints of young healthy individuals after completing a standardised weight training., Design: This is a prospective cohort study., Methods: MSUS examinations of large- and medium-sized joints, and related entheseal sites, bursae and tendons were performed on young healthy individuals (ages 18-30 years). Before, 24 and 48 h after completing 1 h of standardised weight exercise, the subjects were evaluated by MSUS. The development of the MSUS findings and associated effects were examined using generalised linear mixed effects models., Results: In total, 51 healthy individuals (52.9% female) with a mean age of 23.7 (±2.5) years were enrolled. The results showed an increase in the number of individuals with at least one joint effusion from 37 (72.5%) before the weight training to 48 (94.1%) after 48 h. Entheses with pathologies were observed in 14 participants (27.5%) at baseline, increasing to 29 participants (56.9%) 48 h after the weight training. Biceps tendon sheath effusion was detected in 9 individuals (17.6%) prior to training, rising to 22 individuals (43.1%) after 48 h. A significant increase in the number of joints with effusion and abnormal entheses within 48 h after the weight training was indicated by the generalised linear mixed effects models., Conclusion: Within 48 h after the weight training session, a significant increase in the prevalence of joint effusion in large and medium joints and the prevalence of abnormal entheses was observed. As a result, when performing and interpreting an MSUS examination, the patient's physical activities should be taken into account., Competing Interests: Competing interests: The authors declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Valentin S. Schäfer has received a research grant from Hexal AG. The other authors declare that they have no competing interests., (© The Author(s), 2022.)

Effective vaccines for prevention of severe course and lethal outcome of coronavirus disease 2019 have been developed and approved in regulatory rolling and fast-track procedures; they are now widely distributed worldwide. Data about cutaneous side-effects of the new mRNA-type vaccines is scant, however. We herein report two similar cases of cutaneous adverse drug reactions (ADR) mimicking Rowell's syndrome that occurred after the first dose of BNT162b2 and mRNA-1273, respectively. Both patients achieved prompt clinical improvement with a short pulse of oral prednisolone and non-steroidal inflammatory drugs. We suspect this phenomenon to occur in a timeframe of 7-14 days after vaccination due to an interferon-γ-driven shift towards type I immunity in susceptible individuals. As rheumatic patients were excluded from phase III clinical trials and as most countries prioritized the elderly population to receive the vaccinations first, cutaneous ADR might become more frequent once the younger part of the population is vaccinated over the course of 2021. Atypical cutaneous ADR might be misinterpreted or overlooked by non-dermatologists. Further studies are required to determine the best suitable vaccine types for individual groups of patients., (© 2021 The Authors. The Journal of Dermatology published by John Wiley & Sons Australia, Ltd on behalf of Japanese Dermatological Association.)

Background: Management of psoriasis patients with arthralgia suffering from suspected psoriatic arthritis (PsA) requires an interdisciplinary approach involving dermatologists and rheumatologists. The aim of the study was to analyze the specialized dermatological-rheumatological management of these patients before and after foundation of a PsA center., Methods: A retrospective cohort study of all dermatological-rheumatological consultations during two periods was conducted. Period one, from April 1st, 2016 to February 28th, 2018 versus period two, from March 1st, 2018 to January 31st, 2020, after foundation of a PsA center. Clinical data on patient characteristics including psoriasis subtypes, clinical symptoms and signs, disease activity scores, classification criteria and comorbidities as well as patient journey were extracted and analyzed., Results: Four hundred four consultations were studied. Close collaboration in a PsA center lead to a relevantly shortened patient journey concerning rheumatological complaints: period 1: median (IQR): 36.0 (10.0-126.0) months, period 2: median (IQR): 24.0 (6.0-60.0) months. Established scores and classification criteria such as GEPARD or CASPAR did not assist in diagnosis of PsA. Arthralgia (p = 0.0407), swollen joints (p = 0.0151), morning stiffness (p = 0.0451) and dactylitis (p = 0.0086) helped to distinguish between osteoarthritis and PsA., Conclusions: Clinical signs and symptoms, scores and classification criteria usually assessed were less helpful than expected in diagnosis of PsA. Close collaboration in a specialized PsA center yielded the fastest way of diagnosis., (© 2021. The Author(s).)

(1) Background: Coronavirus disease 2019 (COVID-19) vaccines are currently employed on a population-wide scale in most countries worldwide. Data about unusual cutaneous adverse drug reactions (ADR) are scant, though. (2) Methods: We retrospectively analyzed moderate to severe vaccine-related ADR in the Department of Dermatology and Allergy of the University Hospital Bonn between May to June 2021 and analyzed related skin biopsies. (3) Results: As a specialized dermatological academic center, we encountered a total of n = 19 clinically and pathologically heterogeneous cutaneous ADR with a female predominance. Delayed cutaneous ADR occurred as late as 30 days after vaccination. The majority of ADR were mild, though a few patients required systemic treatment (antihistamines, glucocorticosteroids). (4) Conclusions: The clinico-pathological spectrum of cutaneous side effects with COVID-19 vaccines is wide; however, the benefits outweigh the risks by far. More dermatopathological studies on cutaneous ADR not limited to COVID-19 vaccines are desirable to enable a better understanding of underlying pathophysiological mechanisms.

(1) Background: Numerous vaccines are under preclinical and clinical development for prevention of severe course and lethal outcome of coronavirus disease 2019 (COVID-19). In light of high efficacy rates and satisfactory safety profiles, some agents have already reached approval and are now distributed worldwide, with varying availability. Real-world data on cutaneous adverse drug reactions (ADRs) remain limited. (2) Methods: We performed a literature research concerning cutaneous ADRs to different COVID-19 vaccines, and incorporated our own experiences. (3) Results: Injection site reactions are the most frequent side effects arising from all vaccine types. Moreover, delayed cutaneous ADRs may occur after several days, either as a primary manifestation or as a flare of a pre-existing inflammatory dermatosis. Cutaneous ADRs may be divided according to their cytokine profile, based on the preponderance of specific T-cell subsets (i.e., Th1, Th2, Th17/22, Tregs). Specific cutaneous ADRs mimic immunogenic reactions to the natural infection with SARS-CoV-2, which is associated with an abundance of type I interferons. (4) Conclusions: Further studies are required in order to determine the best suitable vaccine type for individual groups of patients, including patients suffering from chronic inflammatory dermatoses.

Introduction: Diagnosis of a polysymptomatic, rare parasitosis requires collaboration of internal specialists, tropical disease specialists, parasitologists and dermatologists., History: The course of disease is shown in a 66-year-old woman who regularly travels to Cameroon and presented with remarkable hypereosinophilia and pruritus with urticarial swellings., Findings and Diagnosis: Using interdisciplinary diagnostics based on travel history, symptoms and laboratory results an occult amicrofilaraemic Loa loa infection with immunological hyperreaction to the parasite antigen, reactive hypereosinophilia and high antibody titers was diagnosed., Therapy and Course: Anthelmintic therapy was inducted with ivermectin and diethylcarbamazine. Treatment with ivermectin alone resulted in a prompt regression of symptoms and decrease of eosinophil levels and antibody titers., Conclusions: Parasitic diseases like L. loa infections are extremely rare in Europe but should be considered as differential diagnosis at an early stage when patients present with appropriate travel history and clinical findings. There is a lack of standardized therapy and follow-up recommendations. A precise recording of all new diagnoses with therapy progress/response should be established in an international registry., Competing Interests: Die Autorinnen/Autoren geben an, dass kein Interessenkonflikt besteht., (Thieme. All rights reserved.)

Background and Objective: Musculature affected during spondylodesis surgery may benefit and recover faster if supported by spine orthosis postoperatively., Methods: This prospective study included 50 consecutive patients undergoing one- or two-level spondylodesis. The intervention group received a lumbar spine orthosis (n= 23), while the control group remained without orthosis (n= 27). Patients were assessed for pain (Visual Analogue Scale, VAS), Oswestry Disability index (ODI) as well as the use of analgesics., Results: Patients wearing an orthosis postoperatively reported a higher degree of subjective stability. However, both intervention as well as control group did not show any significant differences for each of the follow-up points regarding VAS, ODI or the use of analgesics., Conclusion: Wearing an orthosis has neither impact on subjective pain, the need for analgesics nor for postoperative functionality. However, patients reported that they profited from wearing the orthosis by feeling more stable, thereby nicely improving their postoperative mobility. Thus, novel patient reported outcome measures have to be developed to assess these features in future studies.