Corona viruses: reaching far beyond the common cold.

Background: Human coronaviruses (HCoVs) are one of the most common causes of the "common cold". Some HCoV strains, however, can cause fatal respiratory disease. Some examples of these diseases are severe acute respiratory syndrome (SARS), Middle East respiratory syndrome (MERS), and Coronavirus Disease 19 (COVID-19).

Popliteal artery patency is an indicator of ambulation and healing after below-knee amputation in vasculopaths.

Background: The posterior flap is a conventional technique for closing a below-knee amputation (BKA) that uses the gastrocnemius and soleus muscle and relies on the popliteal and posterior compartment arteries. If the prior mentioned arterial blood supply is compromised, this flap likely relies on collateral flow. The purpose of this study is to identify and differentiate any significant associations between preoperative popliteal and tibial arterial flow and BKA outcomes and patient-reported function.

Vibrio vulnificus: Review of Mild to Life-threatening Skin Infections.

Vibrio vulnificus is a motile, gram-negative, halophilic, aquatic bacterium that is part of the normal estuarine microbiome and typically is found in warm coastal waters. Infection with the pathogen typically is due to consumption of contaminated seafood or exposure to contaminated seawater. Vibrio vulnificus has a mortality rate of almost 33% in the United States and is responsible for more than 95% of seafood-related deaths in the United States.

Cutaneous mucormycosis of the lower extremity leading amputation in two diabetic patients.

Mucormycosis is an invasive, rapidly progressive, life-threatening fungal infection, with a propensity for diabetic, immunosuppressed, and trauma patients. The classic rhinocerebral variation is most common in diabetic patients. While the cutaneous form is usually caused by direct inoculation in immunocompetent patients.

Vitamins A, B, C, and D: A Short Review for the Dermatologist.

Background: Vitamins and their derivatives are used extensively in the field of dermatology to treat a range of conditions, both benign and malignant. Additionally, over the past decade, vitamin supplements have been heavily advertised for improving overall health. Due to the widespread use of vitamins and their derivatives for dermatologic conditions, a comprehensive review of the evidence is needed.

Topical rapamycin for acanthosis nigricans in the Fitzpatrick IV/V adolescent population.

Dermatologically, FGFR3 mutations can lead to acanthosis nigricans (AN), epidermal nevi, and seborrheic keratosis. A recent case report found that topical rapamycin (sirolimus) can improve FGFR3-induced epidermal nevi with AN features in children, specifically with Fitzpatrick skin type (FST) I/II, and we would like to expand these findings to skin plaques with extensive AN-like features in the FST IV/V adolescent population. An 18-year-old female with FST IV/V and FGFR3-induced hypochondroplasia presented to our clinic with extensive AN-like plaques.

Hydrogen Peroxide 40% for the Treatment of Seborrheic Keratoses.

Objective: Hydrogen peroxide 40% (HP40) was approved by the US Food and Drug Administration for topical treatment of seborrheic keratosis (SK) in December 2017. This article will review phase II and III clinical trials to assess the drug's efficacy, safety, and clinical application.

Data Sources: A systematic literature review was performed using the terms "Eskata AND seborrheic keratosis," and "hydrogen peroxide AND seborrheic keratosis" in the OVID MEDLINE, PubMed, Cochrane Library, EMBASE, and Web of Science databases.

The case of missing skin: Congenital Volkmann ischemic contracture.

Congenital Volkmann ischemic contracture (CVIC) is an exceedingly rare neonatal compartment syndrome caused by intrauterine ischemia and external compression. It presents at birth with necrotic cutaneous lesions and neurologic impairment, typically in a distal upper extremity. Diagnosis and treatment are often delayed in neonates, leading to long-term neurologic sequelae.

Clinical recommendations made in dermatology publications are frequently not supported by adequate evidence.

Objectives: Absolute risk and cost-benefit analyses are necessary to guide clinical decision making. The purpose of this study was to evaluate whether clinical recommendations in dermatology publications were supported by adequate evidence. We also assessed whether dermatology residents report sufficient evidence when they author publications.