Dermatological manifestations and its association with SARS-CoV-2: a descriptive cross-sectional study from Guatemala

SARS-CoV-2 has a wide spectrum of symptoms, ranging from mild cold-like illness, severe respiratory distress, multi-system disease, and death. There are a few reports regarding cutaneous manifestations; reported findings were: rash, urticaria, chickenpox-like vesicles, livedo reticularis, herpetiform lesions, and chilblains. A descriptive crosssectional study was carried out at Roosevelt Hospital of Guatemala, a first-level infirmary located in the capital city. The sample was determined based on the reported prevalence, which ranges from 1.5%, 7.8% to 20%. An expected percentage of 9% was estimated, with a sampling error of 4% and a confidence level of 95%. A total of 202 patients were included, 77 women (38.1) and 125 (61.9%) men. The age ranged from 12 to 82 years, with a mean of 48.9. The most frequent comorbidities were diabetes (63; 31.2%), hypertension (41; 20.3%), chronic kidney disease (nine; 4.5%), and obesity (14; 6.9%). It was found that 12 patients had skin manifestations, of which five (2.5%) were directly associated with SARS-CoV2 (Figs. 1--3), and seven (3.5%) a circumstantial relationship with it. In the group of patients with direct association, there was no other explanation for the dermatological injury. One patient had reactive arthritis in the knee (this patient had sterile synovial fluid culture and no other associated infection), one patient had urticariform reaction, one patient had erythematous rash (they only received acetaminophen), and two patients had livedo reticular in the legs. The circumstantial association is based on the fact that there are injuries related to the treatment or immunological state of the patient. Three patients who were in prone position to improve oxygenation presented vascular macules on their knees; a biopsy was taken to rule out vasculitis, and only extravasated erythrocytes were found. Two