SARS-CoV-2: una presentación peculiar / SARS-CoV-2: a peculiar presentation

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Safe distance, safe patients! Therapeutic management of oncological patients affected by cutaneous and mucosal adverse events during the COVID-19 pandemic: an Italian experience.

Stringent measures have been taken to contain COVID-19 spread, limiting access only for urgent visits, surgery procedures, or hospitalizations and using teledermatology services for non-urgent cases. Management of oncological patients affected by chemo-, immune-, and radiotherapy-related cutaneous and mucosal adverse events is a challenge. Firstly because of the differential diagnosis of cutaneous rash (e.g., drug-related rash or paraviral exanthema). Secondly, oncological patients can suffer from xerosis, pruritus, and mucositis that contribute to cutaneous and mucosal barrier lesions, thus becoming vulnerable site for viral or bacterial colonization. These lesions can also be aggravated by the use of protective mask and gloves. Here, we report also our results of a teledermatological survey on 87 oncological patients, where the health status of oncological patients referred to our dedicated clinic was assessed during the COVID-19 pandemic. Therefore, it is fundamental that oncological patients are followed up by their dermatologists even if the clinics are closed. Teledermatology represents a crucial means of communication. Patients can contact the dermatological staff by emails and telephone, 24 h a day, 7 days a week, for video calls and dermatological consultations.

Association of Allergic Symptoms with Dengue Infection and Severity: A Systematic Review and Meta-analysis.

The relationship between the severity of dengue infection and allergy is still obscure. We conducted an electronic search across 12 databases for relevant articles reporting allergic symptoms, dengue infection, and dengue classification. These studies were categorized according to dengue severity and allergy symptoms, and a meta-analysis was performed by pooling the studies in each category. Among the included 57 articles, pruritus was the most common allergic sign followed by non-specified allergy and asthma (28.6%, 13%, and 6.5%, respectively). Despite the reported significant association of dengue with pruritus and total IgE level (P < 0.05), in comparison with non-dengue cases and healthy controls, there was no association between the different severe dengue group with pruritus, skin allergy, food allergy or asthma. However, removing the largest study revealed a significant association between asthma with dengue hemorrhagic fever (DHF) rather than dengue fever (DF). In comparison with DF, DHF was associated with IgE positivity. Furthermore, specific-IgE level was higher in secondary DF rather than primary DF. There was a possible association between allergy symptoms and dengue severity progression. Further studies are needed to clarify this association.

Is acyclovir effective for the treatment of varicella in children and adolescents? / ¿Es efectivo el aciclovir en el tratamiento de la varicela en niños y adolescentes?

INTRODUCTION: Varicella (chickenpox) is a frequent and highly contagious infectious disease, caused by the Varicella zoster virus. Traditionally, it has been recommended to focus on the management of symptoms, since there is controversy about the role of antivirals, particularly in children and adolescents. METHODS: To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach. RESULTS AND CONCLUSIONS: We identified three systematic reviews including three studies overall, all of them corresponding to randomized trials. We concluded the use of acyclovir might not decrease the associated complications, and it is not clear whether it reduces lesions or itching because the certainty of the evidence is very low.

INTRODUCCIÓN: La varicela es una enfermedad infecciosa frecuente y altamente contagiosa, producida por el virus Varicella Zoster. Tradicionalmente se ha recomendado tratarla en forma sintomática, ya que existe controversia en relación a la utilidad del tratamiento antiviral, en especial en niños y adolescentes. MÉTODOS: Para responder esta pregunta utilizamos Epistemonikos, la mayor base de datos de revisiones sistemáticas en salud, la cual es mantenida mediante búsquedas en múltiples fuentes de información, incluyendo MEDLINE, EMBASE, Cochrane, entre otras. Extrajimos los datos desde las revisiones identificadas, reanalizamos los datos de los estudios primarios, realizamos un metanálisis y preparamos una tabla de resumen de los resultados utilizando el método GRADE. RESULTADOS Y CONCLUSIONES: Identificamos tres revisiones sistemáticas, que en conjunto incluyen tres estudios primarios, todos correspondientes a ensayos aleatorizados. Concluimos que el uso de aciclovir podría no disminuir las complicaciones asociadas, y no está claro si disminuye las lesiones o el prurito porque la certeza de la evidencia es muy baja.

Adult-onset papular purpuric gloves and socks syndrome.

Papular purpuric gloves and socks syndrome (PPGSS) is a self-limited exanthem that presents as painful or pruritic edema, erythema, petechiae, and purpura of the palms and soles with occasional extension to the dorsal hands and feet. The majority of PPGSS cases reported in the literature are associated with parvovirus B19 and occur in children and young adults. In a recent literature search, there were 11 PPGSS cases in adults with none reporting Epstein-Barr virus (EBV) as a viral etiology. However, there have been PPGSS cases related to EBV in children. We report the case of a 72-year-old man with PPGSS associated with Epstein-Barr virus. This case report serves as a reminder that PPGSS can present not only in the setting of pediatric and young adult parvovirus B19 infection, but also in immunocompetent adults with other viral infections.

Randomized clinical trial of famciclovir or acyclovir for the treatment of herpes zoster in adults.

BACKGROUND: This study investigated the safety and efficacy of famciclovir compared to acyclovir in patients with herpes zoster, to determine whether the two regimens are equally effective for the treatment of patients with uncomplicated herpes zoster over a period of 7days. METHODS: Patients were randomly assigned to receive either famciclovir 500mg (one tablet) three times daily or acyclovir 800mg (two capsules) five times daily for 7 days. The primary endpoint was defined as the time to full crusting of herpes zoster lesions. Secondary endpoints were the proportion of patients who achieved complete cure and the change in score of signs/symptoms (pain, vesicular lesions, loss of sensitivity, burning pain, and pruritus) according to the patient diary. This study has been registered at ClinicalTrials.gov (NCT01327144). RESULTS: One hundred and seventy-four patients were enrolled and randomized; 151 of these patients completed treatment (n=75 famciclovir, n=76 acyclovir). A similar proportion of patients who received acyclovir (94.74%) and famciclovir (94.67%) achieved complete cure. The mean time to full crusting of herpes zoster lesions was 15.033days in the acyclovir group and 14.840days in the famciclovir group (log-rank p-value=0.820). The most common adverse events in the pooled groups were headache, diarrhea, nausea, back pain, cold, and drowsiness, but none of these was deemed to be clinically important. CONCLUSIONS: Both interventions obtained high rates of cure and had a similar time to full crusting of lesions. Analysis of the primary efficacy endpoint proved that famciclovir is non-inferior to acyclovir, as the confidence interval for the difference in efficacy did not violate the non-inferior margin. Therefore, the results are not different enough to be clinically relevant.

Treatment of human polyomavirus-7-associated rash and pruritus with topical cidofovir in a lung transplant patient: Case report and literature review.

Human polyomavirus-7-associated rash and pruritus (PVARP) is a chronic superficial viral skin infection, which primarily impacts immunocompromised individuals. We report on a case of PVARP in a lung transplant recipient. Our patient developed symptoms 13 years after being on his immunosuppressive regimen, with an insidious course of progressive gray lichenification with marked islands of sparing and quality of life-altering pruritus. Treatment for PVARP is not established; however, topical cidofovir combined with immunomodulation may offer sustained therapeutic benefit.

¿Es efectivo el aciclovir en el tratamiento de la varicela en niños y adolescentes? / Is acyclovir effective for the treatment of varicella in children and adolescents?

Resumen INTRODUCCIÓN: La varicela es una enfermedad infecciosa frecuente y altamente contagiosa, producida por el virus Varicella Zoster. Tradicionalmente se ha recomendado tratarla en forma sintomática, ya que existe controversia en relación a la utilidad del tratamiento antiviral, en especial en niños y adolescentes. MÉTODOS: Para responder esta pregunta utilizamos Epistemonikos, la mayor base de datos de revisiones sistemáticas en salud, la cual es mantenida mediante búsquedas en múltiples fuentes de información, incluyendo MEDLINE, EMBASE, Cochrane, entre otras. Extrajimos los datos desde las revisiones identificadas, reanalizamos los datos de los estudios primarios, realizamos un metanálisis y preparamos una tabla de resumen de los resultados utilizando el método GRADE. RESULTADOS Y CONCLUSIONES: Identificamos tres revisiones sistemáticas, que en conjunto incluyen tres estudios primarios, todos correspondientes a ensayos aleatorizados. Concluimos que el uso de aciclovir podría no disminuir las complicaciones asociadas, y no está claro si disminuye las lesiones o el prurito porque la certeza de la evidencia es muy baja.

Abstract INTRODUCTION: Varicella (chickenpox) is a frequent and highly contagious infectious disease, caused by the Varicella zoster virus. Traditionally, it has been recommended to focus on the management of symptoms, since there is controversy about the role of antivirals, particularly in children and adolescents. METHODS: To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach. RESULTS AND CONCLUSIONS: We identified three systematic reviews including three studies overall, all of them corresponding to randomized trials. We concluded the use of acyclovir might not decrease the associated complications, and it is not clear whether it reduces lesions or itching because the certainty of the evidence is very low.

Mucocutaneous manifestations in human immunodeficiency virus (HIV)-infected patients in Nouakchott, Mauritania.

BACKGROUND: Mucocutaneous manifestations are one of the first clinical signs in patients infected with human immunodeficiency virus (HIV). To the best of our knowledge, there has been no previous study describing dermatologic manifestations in Mauritanians infected with HIV. The aim of the present study was to determine the profiles of mucocutaneous manifestations in relation to CD4 T cell count in HIV-positive Mauritanian patients. METHODS: A total of 86 adult patients aged > 18 years old attending the Ambulatory Treatment Center of the National Hospital of Nouakchott, Mauritania, with newly diagnosed HIV and who were not under antiretroviral treatment were included in the study in 2015. Dermatologic manifestations were documented before initiating antiretroviral treatment. RESULTS: Most of the included patients were in clinical stage 3 of the World Health Organization classification at initial diagnosis, with the mean CD4 T cell count (± SD) of 514 ± 319 cells/mm3 (range, 2-1328 cells/mm3 ), and 19 of 86 (22.1%) patients had CD4 T cell counts below 200 cells/mm3 . More than half (64%) of newly diagnosed HIV-infected patients had dermatoses, including the following: pruritic papular eruption (44.2%), seborrheic dermatitis (4.7%), Kaposi's sarcoma (3.5%), extensive xerosis cutis (2.3%), drug-induced skin reactions (1.2%), and various infectious dermatoses (dermatophyte infections [16.3%], oral candidiasis [11.6%], herpes zoster [8.1%], and scabies [2.3%]). A low CD4 T cell count (< 200 cells/mm3 ) was significantly correlated (P < 0.05) with the presence of following dermatoses: dermatophytosis, oral candidiasis, Kaposi's sarcoma, seborrheic dermatitis, and extensive xerosis cutis. CONCLUSION: Mucocutaneous lesions occur throughout the course of HIV infection, and dermatologic findings in Mauritanian HIV-positive patients are similar to those of patients in other countries. Early detection of skin disorders in some patients may help establish the diagnosis of HIV and management of HIV-associated diseases, limiting the cost of care in low-resource countries.

Dermatologic Manifestations of Chronic Hepatitis C Infection.

Chronic hepatitis C virus (HCV) infection is associated with various extrahepatic manifestations, including dermatologic involvement mostly caused by immune complexes. Mixed cryoglobulinemia has a strong relationship with HCV with 95% of these patients being infected with HCV. Lichen planus is a disease of the squamous epithelium and may affect any part of the skin, with 4% to 24% of patients with lichen planus reported to have chronic HCV infection. Porphyria cutanea tarda is the most common form of porphyria, and it is thought that HCV interferes with iron stores, which can promote porphyria cutanea tarda. Finally, necrolytic acral erythema is a rare, psoriasis-like disease closely associated with HCV.

Leflunomide for the treatment of trichodysplasia spinulosa in a liver transplant recipient.

Trichodysplasia spinulosa (TS) is a rare dermatologic complication associated with the immunosuppressive therapy used in solid organ transplantation. The distinctive clinical manifestation of this condition is spiny follicular papules on the face, ears, extremities, and trunk. Histopathologically, abnormally maturing hair follicles with hyperkeratotic material are noted. The condition is produced by the trichodysplasia spinulosa-associated polyomavirus. Treatment of this condition in the past has entailed a reduction in immunosuppression, topical agents such as cidofovir or retinoids, or oral valganciclovir. Herein, we report a case of generalized TS treated successfully with leflunomide.

Human polyomavirus 6 and 7 are associated with pruritic and dyskeratotic dermatoses.

BACKGROUND: Human polyomavirus (HPyV)6 and HPyV7 are shed chronically from human skin. HPyV7, but not HPyV6, has been linked to a pruritic skin eruption of immunosuppression. OBJECTIVE: We determined whether biopsy specimens showing a characteristic pattern of dyskeratosis and parakeratosis might be associated with polyomavirus infection. METHODS: We screened biopsy specimens showing "peacock plumage" histology by polymerase chain reaction for HPyVs. Cases positive for HPyV6 or HPyV7 were then analyzed by immunohistochemistry, electron microscopy, immunofluorescence, quantitative polymerase chain reaction, and complete sequencing, including unbiased, next-generation sequencing. RESULTS: We identified 3 additional cases of HPyV6 or HPyV7 skin infections. Expression of T antigen and viral capsid was abundant in lesional skin. Dual immunofluorescence staining experiments confirmed that HPyV7 primarily infects keratinocytes. High viral loads in lesional skin compared with normal-appearing skin and the identification of intact virions by both electron microscopy and next-generation sequencing support a role for active viral infections in these skin diseases. LIMITATION: This was a small case series of archived materials. CONCLUSION: We have found that HPyV6 and HPyV7 are associated with rare, pruritic skin eruptions with a distinctive histologic pattern and describe this entity as "HPyV6- and HPyV7-associated pruritic and dyskeratotic dermatoses."

The Emerging Zika Virus Threat: A Guide for Dermatologists.

We provide a guide for dermatologists to follow if they encounter patients with a rash and clinical history suspicious of Zika virus infection, including diagnostic testing and management options. We also provide an illustrative case report of a patient from Brazil who was diagnosed with Zika virus infection after presenting with a generalized pruritic rash. One of the most prominent symptoms of Zika virus infection is a cutaneous eruption. As such, it is especially necessary for dermatologists to understand this virus so that they may appropriately recognize this entity as a diagnostic consideration in the clinic. The rash associated with Zika virus infection is most commonly an erythematous maculopapular eruption that presents after an initial 3-4 days of fever, headache, and arthralgia or myalgia. The rash typically lasts for an average of 6 days, and can spread to involve any part of the body, including the face, torso, extremities, palms, and soles.