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The presence of Demodex spp. mites on the skin is a common phenomenon in the human population. In most people, it is an asymptomatic infestation, but in some patients, it can contribute to the occurrence of diseases such as demodicosis, rosacea, or blepharitis, as well as non-specific symptoms. In this study, the results of tests assessing the presence of Demodex spp. by direct microscopic examination (DME) in 2508 patients from northern Poland with the suspicion of demodicosis were retrospectively analyzed. A total of 3684 tests were performed. Among them, only 1585 (43.02%) revealed the presence of Demodex spp., while 2099 (56.98%) were negative. It was shown that in the analyzed population of patients with clinical suspicion of demodicosis, the degree of confirmation of the presence of Demodex spp. positively correlated with the patient's age (p = 0.001) and the mite was mainly found on the edges of eyelids and on the facial skin. Additionally, in men, the presence of Demodex was more often confirmed than in women (p = 0.004). In conclusion, the proper diagnosis of demodicosis still constitutes an important clinical problem due to the non-specificity of symptoms and the low confirmation of clinical suspicions of infestation by DME, especially in lower age groups. [ABSTRACT FROM AUTHOR]

Background/Aim: Google Trends is a powerful tool for health information access and disease surveillance, including COVID-19 data forecasting. Cutaneous manifestations of COVID-19 include urticarial rash, which is multifactorial and may indicate a better prognosis. Aim of this study was to analyse the search queries for the term “urticaria” during the six years period (2017-2022) and assess the relationship between relative search volume (RSV) and a global rise in COVID-19 cases. Methods: This study examined search queries for "urticaria" from 2017 to 2022, exploring the relationship between RSV and global COVID-19 cases. Data on "urticaria" search volume in various countries were collected using Google Trends. Microsoft Excel and correlation analysis were used to analyse the data and investigate the association between search volume and monthly COVID-19 case rise. Results: During 2017-2019, the mean RSV for "urticaria" was 69.9 ± 10.1, which increased to 84.1 ± 8.6 during 2020-2022. The difference in means was statistically significant (p < 0.001). The mean RSV in 2022 (94.3) was the highest among all years studied. The increase in RSV from 2020 to 2022 moderately correlated (r = 0.56) with monthly COVID-19 case rise (p < 0.001). Nicaragua showed the highest search interest, while Africa, North America, Asia and Pacific, the Middle East and Europe had low search interest. Conclusions: This study identified a significant increase in search volume for "urticaria" during the COVID-19 pandemic. Nicaragua had the highest search interest, while English-speaking countries displayed low interest. Language variation, cultural differences and COVID-19-related health concerns may influence public interest in urticaria. These findings can aid public health officials in understanding public health concerns and tailoring effective health communication strategies. [ABSTRACT FROM AUTHOR]

BackgroundCOVID-19 presents extrapulmonary manifestations that can aid in the diagnosis. Skin manifestations have been reported but their characteristics are not yet clear. Health professionals need information about its prevalence and main characteristics.MethodsThis systematic review followed the PRISMA criteria. The protocol was registered in the PROSPERO (number CRD42020193173). Seven electronic databases and the gray literature were searched independently by two researchers. Observational analytical studies that presented data on the prevalence of skin manifestations in patients aged 19 or older with COVID-19 were included. Prevalence estimates were synthesized through a meta-analysis using random-effects models. Association meta-analysis and comparisons were performed for individual characteristics.ResultsWe included 31 studies with 10,934 patients, of which 10,121 tested positive for COVID-19. The general prevalence of skin manifestations was 29% (95% CI: 17.0–43.0; I2: 99%), the most in Africa, with a mean duration between 7 and 9 days and the most frequently affecting feet+hands (75%) and the trunk (71%). Patients with mild/moderate COVID-19 had more of chilblain-like+pernio-like lesions (97%) and inflammatory lesions (86%) than patients with severe or critical COVID-19. Manifestations of vascular origin were only in elderly patients and were significant with the severity of COVID-19 (p = 0).ConclusionThe global prevalence of skin manifestations is similar to other signs and symptoms of COVID-19. Skin assessment should be considered when investigating and diagnosing COVID-19 in adult and elderly patients.Systematic review registration: PROSPERO, identifier CRD42020193173, https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020193173.

Abstract Background: Since the beginning of the COVID-19 pandemic, a myriad of cutaneous manifestations have been described in association with this viral infection. However, in Latin America, this kind of data is still scarce. Objective: In this sense, the goal of this study was to describe the dermatological findings observed during SARS-CoV-2 infection, in a Brazilian Hospital. Methods: This is a cross-sectional, retrospective and descriptive study of 50 cases of new-onset dermatologic symptoms in patients with COVID-19, treated at Hospital Sírio-Libanês, from February to June 2020. Results: The patients (n = 50) were classified into 6 groups, according to the elementary lesions and the statistical analysis was performed. The most common cutaneous lesions were maculopapular eruptions (44%), necrosis, purpura, and livedo (32%), urticarial lesions (12%), pseudochilblains (4%) and papular-vesicular eruption (4%). In 46% of the patients the cutaneous lesions occurred in association with other symptoms, such as pruritus (38%), pain and burning sensation (8%). Lower limbs were affected in 44% of the cases, followed by the trunk (38%), upper limbs (24%) and face (14%). Cutaneous lesions were mostly found after other COVID-19 systemic symptoms, with a mean period between the viral syndrome and cutaneous signs of 5 days (SD = 6.1 days). Study limitations: It is a small sample, in a single-center study, with patients exclusively from a private Hospitals. Conclusions: Patients in Brazil have the same proportion of lesions as revealed in other studies in Europa. The compiled data is essential for a better understanding of cutaneous manifestations deemed secondary to COVID.

Acroosteolysis (AO) is a rare condition characterized by resorption of the distal phalanges of the fingers and/or toes. It can be familial, idiopathic (IAO), occupational, or secondary. Other authors suggest a classification into primary (genetic disorders, lysosomal storage disorders) or secondary AO. Various skin and nail changes have been reported in this condition. However, the cutaneous change on the affected digit(s)/toe(s) during the natural course of AO has been poorly documented. A 5-year-old girl presented with a 3-month history of a distinct transverse boundary between normal skin proximally and affected crusted skin overlying osteolysis distally (“split” sign) on the plantar surface of the third toe. This boundary gradually elongated circumferentially to involve the dorsal surface. The mother gave a similar history of a delimitation line on the 2nd, 4th, and 5th toes of the right foot with durations of 3 months, 1 year, and 2 years, respectively, that disappeared before she noticed a shortening of those toes. X-rays revealed partial resorption of the terminal phalanx of the third toe and several lytic changes in the middle and terminal phalanx of the second, fourth, and fifth toes. The clinical features, radiology findings, and a workup that helped rule out conditions associated with AO (secondary AO) helped establish the diagnosis of IAO in our patient. This case study highlights that the natural course of IAO includes distinct skin findings, such as the “split” sign that we describe. This sign can help identify the condition early.

The skin manifestations of COVID-19 are infrequent but vary widely. Maculopapular rash, urticaria, chilblain, vesicular lesions, livedo reticularis, and petechiae are described. The manifestations are also common in adults and female gender. Authors report an uncommon skin manifestation of Covid-19 in a 15-year-old boy. [ABSTRACT FROM AUTHOR]

Joanna Rybak-d’Obyrn,1 Waldemar Placek,1 Agnieszka Owczarczyk-Saczonek,1 Maria Derkaczew,1 Ewelina Joniec,1 Robert Hofman,1 Ma&lstrok;gorzata Stompór2 1Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland; 2Department of Family Medicine and Infectious Diseases, Collegium Medicum, University of Warmia and Mazury, Olsztyn, PolandCorrespondence: Maria Derkaczew, Tel +48 607654914, Email m.derkaczew@gmail.comPurpose: The aim of this study was to assess the incidence and characteristics of COVID-19 cutaneous manifestations among geriatric patients infected with the SARS-CoV-2 virus.Patients and Methods: Sixty-four nursing home residents in Dobre Miasto, Poland (mean age: 79 years) infected with SARS-CoV-2 were monitored for skin lesions during the epidemic outbreak in 2020. Only five of them presented COVID-19 dermatological manifestation: vesicular (4 cases) and erythematous (1 case) skin lesions, which appeared after the remaining symptoms of the disease had resolved.Results: The average time between COVID-19 onset and cutaneous manifestation was 22 days. Skin lesions persisted in five cases 112, 17, 21,19 and 27 days, respectively, and were often accompanied by pruritus and neuropathic pain.Conclusion: Skin manifestations of SARS-CoV-2 infection might be misdiagnosed or overlooked, particularly among elderly patients with chronic diseases. The recognition of skin lesions due to COVID-19 might improve patients’ quality of life by reducing the intensity of symptoms such as pruritus or neuropathic pain.Keywords: geriatrics, dermatology, skin manifestation, vesicular

Background: COVID‐19 is a highly contagious respiratory tract infection caused by severe acute respiratory syndrome coronavirus 2. COVID‐19 outbreak, which caused thousands of deaths, has been declared a pandemic by the World Health Organization in March 2020. Aim: Skin manifestations related to SARS‐CoV‐2 infection can be divided mainly into five groups: chilblainlike lesions (CBLLs), maculopapular eruptions, urticarial eruptions, vesicular eruptions, and livedo or necrosis. Other skin findings reported are erythema multiforme (EM)‐like lesions and skin findings associated with multisystem inflammatory syndrome in children (MIS‐C) and rarely with multisystem inflammatory syndrome in adults (MIS‐A). Other manifestations such as pityriasis rosea or shingles are also reported. Methods: A total of 60 articles including reviews, studies and case reports were selected for the evaluation in this review. Results: The skin manifestations associated with COVID‐19 infection are numerous and can vary widely. The major dermatological patterns of COVID‐19 can be classified as inflammatory reactions (maculopapular/morbilliform, urticarial and vesicular rashes), or lesions of vascular origin (chilblain like rashes, petechiae/purpura, and livedo acemose‐like pattern) Conclusion: We believe that the dermatologist could play an important role in the response to the SARS‐CoV‐2 pandemic through early recognition of skin lesions suggestive of COVID‐19, particularly in paucisymptomatic infections where this recognition could direct toward an early diagnosis of infection that certainly leads to a better prognosis. [ABSTRACT FROM AUTHOR]

Acroosteolysis (AO) is a rare condition characterized by resorption of the distal phalanges of the fingers and/or toes. It can be familial, idiopathic (IAO), occupational, or secondary. Other authors suggest a classification into primary (genetic disorders, lysosomal storage disorders) or secondary AO. Various skin and nail changes have been reported in this condition. However, the cutaneous change on the affected digit(s)/toe(s) during the natural course of AO has been poorly documented. A 5-year-old girl presented with a 3-month history of a distinct transverse boundary between normal skin proximally and affected crusted skin overlying osteolysis distally ("split" sign) on the plantar surface of the third toe. This boundary gradually elongated circumferentially to involve the dorsal surface. The mother gave a similar history of a delimitation line on the 2nd, 4th, and 5th toes of the right foot with durations of 3 months, 1 year, and 2 years, respectively, that disappeared before she noticed a shortening of those toes. X-rays revealed partial resorption of the terminal phalanx of the third toe and several lytic changes in the middle and terminal phalanx of the second, fourth, and fifth toes. The clinical features, radiology findings, and a workup that helped rule out conditions associated with AO (secondary AO) helped establish the diagnosis of IAO in our patient. This case study highlights that the natural course of IAO includes distinct skin findings, such as the "split" sign that we describe. This sign can help identify the condition early. [ABSTRACT FROM AUTHOR]

Recently, there is an increased number of reports being published on Methotrexate (MTX) related cutaneous manifestations. We aimed to identify and critically appraise descriptive studies describing the MTX related skin manifestations, treatment approach, and their outcomes. An extensive literature search was performed in the PubMed, Embase, and Scopus databases from inception to April 2021 without any restrictions along with the bibliographic search of included studies, grey literature search, and a snowball search was performed in Google and Google Scholar to identify the relevant literature. Descriptive studies reporting MTX related cutaneous manifestations were considered for the review. The study selection, data extraction, and quality assessment were conducted by two independent reviewers and any disagreements were settled by consensus with the third reviewer. 31 out of 8,365 descriptive studies including 38 patients (22 females and 16 males) aged between 12 and 78 years prescribed for the management of rheumatoid arthritis, ankylosing spondylitis, and psoriasis were included in this review. Toxic epidermal necrolysis (TEN), papular eruption, vasculitis, erosions of psoriasis, ulcerated psoriatic plaques, local reactions, keratinocyte dystrophy, erythema multiforme, drug rash with eosinophilia and systemic symptoms, Steven Johnson syndrome and photosensitive dermatitis were the majority of MTX induced cutaneous reactions. Immediate withdrawal of MTX, providing appropriate care with anti-inflammatory, topical steroids, and supplementation with folic acid were reported to be effective for the management of the MTX related cutaneous manifestations. Clinicians and healthcare professionals should be aware of possible acute cutaneous drug reactions induced by MTX to avoid further consequences and fatal conditions. Immediate withdrawal of MTX and supportive care were reported as an efficacious therapeutic management of acute cutaneous drug reactions. CRD42020220038. [ABSTRACT FROM AUTHOR]

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We retrospectively analyzed the clinical and laboratory data of patients diagnosed with anti-transcriptional intermediary factor 1 (TIF-1γ) antibody-positive polymyositis (PM)/dermatomyositis (DM) to clarify the characteristics of this disease. We identified 14 patients with TIF-1γ antibody-positive DM (TIF-1γ DM), 47 with anti-aminoacyl-tRNA synthetase antibody (ARS)-positive PM/DM, and 24 with anti-melanoma differentiation-associated gene 5 antibody (MDA-5)-positive PM/DM treated at the Kurume University Hospital between 2002 and 2020. Patients with TIF-1γ DM were significantly older than the other two groups. Nine patients with TIF-1γ DM were female, thirteen patients had DM, and one had clinically amyopathic DM. Primary malignant lesions were lung (3), uterus (2), colon (2), breast (2), ovary (1), lymphoma (1), and unknown (2). Cutaneous manifestation and dysphagia were the most common symptoms in TIF-1γ DM. Erythema (9/14), the V-neck sign (8/14), heliotrope (9/14), and nailfold telangiectasia (14/14) were significantly more common in TIF-1γ DM. Furthermore, no patients with TIF-1γ DM had interstitial lung abnormality on high-resolution CT. In patients with TIF-1γ DM, the frequency of dysphagia and unusual erythema, particularly that which spreads from the trunk, and nailfold telangiectasia, were characteristic findings. In most patients with TIF-1γ DM, it is necessary to administer other immunosuppressive drugs along with glucocorticoids. [ABSTRACT FROM AUTHOR]

Objectives Myositis-specific autoantibodies (MSAs) define distinct clinical subsets of idiopathic inflammatory myopathies (IIMs). The anti-nuclear matrix protein 2 (NXP2) antibody, a MSA detected in juvenile/adult IIMs, has been reported to be associated with a high risk of subcutaneous calcinosis, subcutaneous oedema and internal malignancies. The study aimed to clarify the clinical features of anti-NXP2 antibody-positive IIMs in detail. Methods This was a multicentre retrospective observational study on 76 anti-NXP2 antibody-positive patients. The antibody was detected via a serological assay using immunoprecipitation and western blotting. The patients were selected from 162 consecutive Japanese patients with IIMs. Results The cohort of anti-NXP2 antibody-positive IIMs included 29 juvenile patients and 47 adult patients. Twenty-seven (35.5%) patients presented with polymyositis phenotype without dermatomyositis-specific skin manifestations (heliotrope rash or Gottron sign/papules); this was more common in the adults than children (48.9% vs 15.8%, P  < 0.01). Nine (11.8%) patients had subcutaneous calcinosis, and 20 (26.3%) patients had subcutaneous oedema. In addition, the proportion of patients with muscle weakness extending to the distal limbs was high (36 patients [47.4%]) in this cohort. Adult patients had a higher prevalence of malignancy than the general population (age-standardized incidence ratio of malignancies: 22.4). Conclusion Anti-NXP2 antibody-positive IIMs, which include dermatomyositis sine dermatitis, are characterized by atypical skin manifestations and extensive muscular involvement. [ABSTRACT FROM AUTHOR]

Behçet's disease (BD), a chronic multi‐systemic disorder, presents diverse clinical manifestations depending on patient ethnicity and geographic region. Use of varying diagnostic criteria augments clinical heterogeneity. We aimed to characterize heterogenous manifestations in patients with full‐blown BD fulfilling the major diagnostic criteria in use. We retrospectively analyzed 338 patients diagnosed with complete BD based on Japanese diagnostic criteria, which fulfill both International Study Group (ISG) criteria and the International Criteria for BD (ICBD). Unbiased clustering analysis was performed to elucidate the heterogeneous spectrum, followed by subgroup analysis of identified clusters. Results of unbiased clustering analysis identify dominant skin lesion type as an important factor that determines clustering among the heterogenous BD patients. Regression analysis reveals that presence of predominantly papulopustular lesions has protective effect for vascular involvement compared to other skin phenotypes. In conclusion, unbiased clustering analysis highlights that dermatologic manifestation can be a factor to understand the heterogeneity of BD and determining the dominant type of skin lesions may help clinicians predict major vascular involvement. [ABSTRACT FROM AUTHOR]

A case study of a 49-year-old Japanese male with COVID-19 who developed EAC after receiving remdesivir intravenously, and his skin lesion resolved with topical steroids and oral antihistamine after discontinuation of the drug, and underlying immunopathogenic similarity between COVID-19 infection.

Background: A substantial number of research studies on metronidazole-related cutaneous symptoms have recently been published. Our objective was to identify and evaluate descriptive studies that described metronidazole-related skin manifestations, therapeutic interventions, and consequences., Methods: A comprehensive literature search was carried out in the PubMed, Scopus, and grey literature databases from inception to April 2022 without any constraints, as well as a snowball search in Google and a search in Google Scholar. Descriptive articles describing metronidazole-related cutaneous manifestations were considered for the review. Two distinct reviewers carried out the research selection, data extraction, and quality assessment; any discrepancies were resolved by consensus with the third reviewer., Results: About 24 out of 4648 descriptive studies, including 26 patients (20 Female patients and 6 male patients), were included in this review. The included studies comprised a range of ages from 16 to 78 years old. Metronidazole was indicated for the treatment of bacterial vaginosis, trichomoniasis, sepsis, anti-infection therapy, perforated appendicitis, rosacea, vaginal discharge, dysentery, acne rosacea, trichomonal vaginitis, lichen planus, liver abscess, facial rosacea, intestinal amoebiasis, and gingivitis. Fixed drug eruption was the most common skin manifestation which was reported in 7 cases included in this review. Cutaneous manifestations were ameliorated by cessation of the offending drug and by apportioning antihistamines, topical steroids, parenteral corticosteroids, emollients, and topical moisturizers., Conclusion: Clinicians and healthcare professionals should be cognizant of the potential cutaneous adverse drug reactions (CADRs) induced by metronidazole to mitigate fatal circumstances. The management of the CADRs appears to respond effectively with immediate drug discontinuation and supportive therapy., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)

BackgroundShortly after the launch of a novel adjuvanted recombinant zoster vaccine (RZV), Shingrix, cases of suspected herpes zoster (HZ) or zoster-like skin reactions following immunisation were reported.AimWe aimed to investigate if these skin manifestations after administration of RZV could be HZ.MethodsBetween April and October 2020, general practitioners (GP) reporting a suspected case of HZ or zoster-like skin manifestation after RZV vaccination to the Paul-Ehrlich-Institut, the German national competent authority, were invited to participate in the study. The GP took a sample of the skin manifestation, photographed it and collected patient information on RZV vaccination and the suspected adverse event. We analysed all samples by PCR for varicella-zoster virus (VZV) and herpes-simplex virus (HSV) and genotyped VZV-positive samples. In addition, cases were independently assessed by two dermatologists.ResultsEighty eligible cases were enrolled and 72 could be included in the analysis. Of the 72 cases, 45 were female, 33 were 60-69 years old, 32 had skin symptoms in the thoracic and 27 in the cervical dermatomes. Twenty-seven samples tested PCR positive for VZV (all genotyped as wild-type, WT), three for HSV-1 and five for HSV-2.ConclusionIt may be difficult to distinguish HZ, without a PCR result, from other zoster-like manifestations. In this study, VZV-PCR positive dermatomal eruptions occurring in the first weeks after immunisation with RZV were due to WT VZV, which is not unexpected as HZ is a common disease against which the vaccine is unlikely to provide full protection at this time.

Anderson-Fabry disease (AFD) is a rare X-linked lysosomal storage disease due to a genetic variation in the α-galactosidase A (GLA) gene. As a result, the activity of the α-galactosidase A (AGAL-A) enzyme is reduced or absent, which causes sphingolipid deposition within different body parts. AFD typically manifests with cardiovascular, renal, cerebrovascular, and dermatologic involvement. Lymphedema is caused by sphingolipid deposition within lymphatics. Lymphedema can cause intolerable pain and limit daily activities. Very limited data exist on lymphedema in AFD patients. Using data from the Fabry Registry (NCT00196742) with 7671 patients included (44% males and 56% females), we analyzed the prevalence of lymphedema among AFD patients who were ever assessed for lymphedema and studied the age of first reported lymphedema. Additionally, we assessed whether patients received AFD-specific treatment at some point during their clinical course. The data was stratified by gender and phenotype. Our study showed that lymphedema occurred in 16.5% of the Fabry Registry patients who were ever assessed for lymphedema (n = 5487). Male patients when compared to female patient have higher prevalence (21.7% vs 12.7%) and experienced lymphedema at a younger age (median age at first reported lymphedema of 43.7 vs 51.7 years). When compared to other phenotypes, classic phenotype has the highest prevalence of lymphedema with the earliest reported lymphedema. Among those who reported lymphedema, 84.5% received AFD-specific treatment during their clinical course. Lymphedema is a common manifestation of AFD in both genders, with a tendency to present later in female patients. Recognition of lymphedema can offer an important opportunity for intervention and potential impact on associated morbidity. Additional future studies are needed to characterize the clinical implications of lymphedema in AFD patients and identify additional treatment options for this growing population. [ABSTRACT FROM AUTHOR]

The most common cutaneous manifestations of alcoholism include urticarial reaction, flushing, porphyria cutanea tarda, psoriasis, rosacea, seborrheic dermatitis, and pruritus. Here, we present a case of a young male with a history of alcohol abuse who presented with non-blanching, petechial, and perifollicular macular rash secondary to vitamin C deficiency in view of poor oral intake. The rash improved significantly with vitamin C supplementation. Although rare in developed countries, clinicians should keep vitamin C deficiency as a differential diagnosis for skin rash in alcohol consumers., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Haider et al.)

Covid-19, caused by severe respiratory syndrome coronavirus 2 (SARS-CoV-2), is currently a pandemic. Although this infection primarily presents with respiratory symptoms, the number of reported extrapulmonary manifestations, including dermatological, is also increasing. A group of pregnant women is particularly susceptible to respiratory diseases, but with regard to covid-19, there is still limited data on the course of infection in pregnancy in relation to the possibility of vertical transmission. We present the case of a 30-year-old unvaccinated patient with a history of overcoming covid-19 infections in the 7th month of pregnancy, and with persistent skin lesions. The patient gave birth to a mature newborn with epidermolytic lesions on a bullous base. In the differential dia-gnostic process, Staphylococcal scalded skin syndrome and epidermolysis bullosa were ruled out in the newborn. Considering the clinical findings and epidemiological history of the mother, we assume a possible vertical transmission of covid-19 with skin manifestation of the disease in the newborn.

Lightning is a natural weather phenomenon that occurs most commonly during the summer months in the afternoon or early evening. Lightning strikes can cause accidental deaths. In developed countries, lightning fatalities occur almost exclusively outdoors. Deaths from lightning may be in remote places with no witnesses. Forensic pathologists may not be able to reach the scene of death because it is too hazardous or inaccessible. Bodies may have neither evidence of skin burns nor torn areas on their clothes. The presumption of accidental death may be difficult to prove. We present 3 cases in which neither the examination of the death scene nor the examination of the bodies by those who attested to the death were performed. The bodies were transported to the morgue for a forensic autopsy because the deaths were considered suspicious. Physicians who attest to death in open spaces during weather that could produce lightning should actively search for Lichtenberg figures, which are considered irrefutable proof of fatal lightning in such settings. They should also photograph them and submit them as evidence. Nevertheless, physicians should keep in mind that Lichtenberg figures are not considered pathognomonic of lightning because some skin manifestations may mimic them., (Copyright © 2022 Wilderness Medical Society. Published by Elsevier Inc. All rights reserved.)