Prolonged Exposure Dermatosis: Reporting High Incidence of an Undiagnosed Facial Dermatosis on a Winter Wilderness Expedition.

Objective: Previously unclassified inflammatory skin lesions referred to as sun bumps have been observed throughout the year on participants of wilderness trips; however, the underlying cause and diagnosis remain unclear. The purpose of this prospective observational study was to document the incidence, characteristics, and risk factors associated with these skin lesions as they occurred on a winter wilderness expedition.

Methods: For this study, the lesions were defined as pruritic or erythematous skin lesions occurring while in the wilderness.

Perceived barriers in the use of ultrasound in developing countries.

Background: Access to ultrasound has increased significantly in resource-limited settings, including the developing world; however, there remains a lack of sonography education and ultrasound-trained physician support in developing countries. To further investigate this potential knowledge gap, our primary objective was to assess perceived barriers to ultrasound use in resource-limited settings by surveying care providers who practice in low- and middle-income settings.

Methods: A 25-question online survey was made available to health care providers who work with an ultrasound machine in low- and middle-income countries (LMICs), including doctors, nurses, technicians, and clinical officers.