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Since the outbreak of the pandemic, anecdotal observations have been accumulating rapidly that sudden anosmia and dysgeusia are peculiar symptoms associated with the COVID-19 infection. Prof C. Hopkins, as President of British Rhinological Society, published a letter describing "the loss of sense of smell as a marker of COVID-19 infection" and proposed that adults presenting with anosmia but no other symptoms should self-isolate for seven days. The Hopkins team published the first case report and case series as well as other evidence that isolated sudden onset anosmia (ISOA), should be considered highly suspicious for SARS-CoV-2(1). Subsequently, a larger series of 2428 patients presenting with new onset anosmia during the COVID-19 pandemic has been reported, of whom 16% report loss of sense of smell as an isolated symptom. Only 51% reported the recognized symptoms of cough or fever. A major limitation of this series however, was a lack of access to testing to confirm the COVID-19 status of the patients(2); in the 80 who had been tested 74% were positive. In the same way, the American Academy of Otolaryngology-head and neck surgery (AA0-HNS) proposed "that anosmia could be added to the list of screening tools for possible COVID-19 infection. More, they warrant serious consideration for self-isolation and testing those patients".Mutations in the genes encoding the DNA mismatch repair (MMR) are identified in most sebaceous neoplasms. Sebaceous tumors are rare in the general population; however, they are common in patients with inherited or acquired mutations in the MMR system. This article describes the DNA MMR system and its implication in sebaceous tumors as well as discusses the recent recommendations for screening for Muir-Torre syndrome (MTS) in patients presenting with sebaceous tumors.Many pediatric skin conditions can be safely monitored with minimal intervention, but certain skin conditions are emergent and require immediate attention and proper assessment of the neonate, infant, or child. We review the following pediatric dermatology emergencies so that clinicians can detect and accurately diagnose these conditions to avoid delayed treatment and considerable morbidity and mortality if missed staphylococcal scalded skin syndrome (SSSS), impetigo, eczema herpeticum (EH), Langerhans cell histiocytosis (LCH), infantile hemangioma (IH), and IgA vasculitis.Compared to head and pubic lice, body lice (Pediculus humanus corporis) carry increased morbidity in the form of greater body surface area involvement, possible infectious disease transmission, and the potential for secondary iron-deficiency anemia. They thrive in high-density urban populations in which hygiene is poor, such as among the homeless. Treatment includes washing of affected individuals, their possessions, and treatment with topical insecticides. Growing patterns of treatment resistance seen in body lice necessitate development of new strategies, with oral medications serving as a promising option.Nonmelanoma skin cancer (NMSC) is the most common malignancy worldwide, and the incidence continues to increase. Originally, treatment options for NMSCs largely relied on destructive and surgical methods. Basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs) commonly are treated with cryosurgery, electrodesiccation and curettage, or more definitive surgical options. Over time, topical agents such as 5-fluorouracil, imiquimod, ingenol mebutate, and various forms of aminolevulinic acid (ALA) for photodynamic therapy (PDT) were included for superficial lesions as well as field treatment. The development of oral hedgehog (Hh) inhibitors such as vismodegib offered a promising alternative to patients with advanced disease. [https://www.selleckchem.com/products/voxtalisib-xl765-sar245409.html learn more] Each treatment has its own specific indications and side effects, thus there is always room for novel therapeutic approaches. We review new and potential treatments for NMSCs since 2018 including topical sonidegib, cemiplimab, taladegib, posaconazole, radiation therapy (RT), combination RT with vismodegib, PDT, and laser therapies.Beau lines, onychomadesis, and retronychia are nail conditions with their own characteristic clinical findings. It has been hypothesized that these 3 disorders may share a common pathophysiologic mechanism of slowing and/or halting nail plate production at the nail matrix. We report the case of a 41-year-old woman who presented with concurrent Beau lines, onychomadesis, and retronychia 6 months following a diagnosis of scurvy. Simultaneous presentation of these 3 nail conditions is not commonly reported, and our case supports a shared pathophysiologic basis.[This corrects the article DOI 10.1055/s-0039-3401008.]. © Thieme Medical Publishers.BACKGROUND Professional exposure to respirable dust containing crystalline silica is of great interest for the serious lung diseases resulting from exposure. METHODS During the period 1986-2019, 3611 exposure data to crystalline silica were collected from companies in central Italy. The data were divided and statistically analyzed based on the sampling system (Cyclone Dorr Oliver, CIP 10-R, Cyclone GS3, SKC plastic selector, Cyclone Higgins-Dewell and Cyclone Lippmann) and the ATECO code (code of economic activity, Italian acronym, used to classify companies when they interface with public institutions) of the companies in which they were collected. For each ATECO code, the division was made according to the type of sampling (personal or static) and the descriptive statistics of the data were calculated. RESULTS Overall, for personal samples, 8.8% of the data exceeds 0.1 mg/m3, 19.6% exceeds 0.05 mg/m3 and 33.8% exceeds 0.025 mg/m3, the limit values set by the EU Directive 2019/130, suggested by the SCOEL and published by ACGIH respectively. The ATECO codes with the highest worker exposure (geometric means 0.067 and 0.069 mg/m3) were 23.31.00 (manufacture of ceramic tiles for floors and walls) and 23.42.00 (manufacture of ceramic sanitary ware), while the lowest exposure is found in 81.29.91 (cleaning and washing of public areas, removal of snow and ice including shedding of sand) with a geometric mean of 0.002 mg/m3. DISCUSSION Despite the general reduction over time, there are still many sectors in which data are higher than the current occupational exposure limits; especially in these sectors it is necessary to implement the measures to fully assess worker exposure.