Background: The earliest cases of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) emerged in Wuhan, China, in December 2019. Since the declaration as a pandemic on 11 March 2020, further dermatological conditions continue to be documented. We herein present a novel literature review of dermatological manifestations associated with the Coronavirus Disease 2019 (COVID-19) pandemic. To date, this literature review is the first broad-spectrum examination that analyzes a range of dermatological manifestations related to the COVID-19 pandemic: infection, vaccinations, personal protective equipment (PPE), and psychosocial factors. Methods: A detailed literature search was conducted using key terms for cutaneous manifestations associated with the scope of this review. The search retrieved 2199 articles. Results: The COVID-19 pandemic has triggered a significant range of dermatologic sequela. Etiologies of lesions continue to be investigated. Proposed mechanisms include inflammatory response to spike protein, vitamin D deficiency, ACE2 receptor activation, androgen levels, and increased psychological stress. One prominent mechanism describes viral spike protein invasion into the dermis by binding to the angiotensin-converting enzyme 2 (ACE-2) receptors in keratinocytes, with a secondary immunological response. Conclusions: Dermatologists play an integral role in the proper diagnosis and treatment of COVID-related lesions. Early treatment regimens and timely prophylaxis have been shown to safely reduce infection-related dermatological sequelae. Additional investigations and data collection can reduce disease burden and improve overall prognosis.

Objective: Acquired reactive perforating collagenosis is an uncommon skin disease that belongs to a group of dermatologic disorders characterized by transepidermal elimination of dermal material. It is highly associated with systemic disease, primarily diabetes mellitus and dialysisdependent chronic renal failure. Methods: A 70-year-old female with 20 years of poorly controlled type 2 diabetes mellitus presented with a 6-month history of multiple pruritic erythematous papules and nodules with central hyperkeratosis, involving her right dorsal arm. Histologic examination was consistent with acquired reactive perforating collagenosis. In addition to topical treatment of the disease, the patient was referred to endocrinology for appropriate management of her underlying diabetes mellitus. Results: Ideal treatment should involve both the endocrinologist and dermatologist. Control of the underlying systemic disease, in this case diabetes, as well topical or systemic medications can both help to improve this condition. Our patient re-established care with her endocrinologist who adjusted her medication regimen, resulting in improved hemoglobin A1c values. Our patient additionally benefited from topical betamethasone cream, ammonium lactate, and pimecrolimus application. The combined therapy led to resolution of her pruritic rash. Conclusion: This case highlights the importance of the skin exam by the endocrinologist, as he or she plays a unique role in identifying this rare and difficult-to-treat dermatologic disease. Early detection and prompt referral to a dermatologist are crucial in preventing progression of disease, treating the disease, and improving the patient's quality of life. (AACE Clinical Case Rep.

Given that the majority of active duty service members are young and healthy, potentially malignant diagnoses such as skin cancer may be overlooked. Although melanoma accounts for only approximately 1% of skin cancers, it causes the greatest majority of skin cancer deaths. We present the case of a 27-year-old active duty Marine who presented with a hyperpigmented macule at his lateral neck that was a malignant melanoma in situ. This article reviews risk factors for the development of melanoma, offers guidelines for primary care providers, reviews resources for providers in a deployed or austere environment, offers recommendations for prevention and early diagnosis, and discusses follow up.

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