Patrones clínicos e histopatológicos de dermatosis en pacientes con infección por COVID-19 en la Unidad Médica de Alta Especialidad del Bajío, IMSS-T1, de León, Guanajuato / Clinical and histopathological patterns of dermatosis in COVID-19 positive patients treated in the Unidad Médica de Alta Especialidad del Bajío, IMSS-T1, de León, Guanajuato

INTRODUCCIÓN: La enfermedad COVID-19, además de presentar síntomas respiratorios, puede afectar otros órganos como la piel. Al momento, se han descrito cinco variantes clínicas de manifestaciones cutáneas por COVID-19. Pocos reportes abordan el tema de la gravedad de las dermatosis cutáneas de COVID-19 y el pronóstico. OBJETIVO: Describir patrones clínicos e histológicos de dermatosis en pacientes con COVID-19. Pacientes y MÉTODOS: Es una cohorte para pacientes del IMSS-T1 en León, Guanajuato, México, entre septiembre 2020 y enero 2021. Identificamos pacientes con dermatosis asociada a COVID-19 desde su ingreso hospitalario y aquellos que la desarrollaron durante su estancia. Se les invitó a participar para evaluación clínica y toma de biopsia que fueron descritas por un patólogo experto. RESULTADOS: La frecuencia de las dermatosis por COVID-19 fue de 15,7%. Los que desarrollaron las lesiones durante su estancia hospitalaria presentaron mayor morbi-mortalidad (p = 0,001). Las lesiones vaso-oclusivas fueron las más diagnosticadas y asociadas con mayor mortalidad (p = 0,003). Histológicamente el hallazgo más común fue trombosis superficial y profunda (58%). CONCLUSIONES: Los pacientes que desarrollaron las lesiones durante su hospitalización y aquellos con lesiones vaso-oclusivas tuvieron la mayor morbi-mortalidad. Las lesiones vaso-oclusivas pueden ser un factor de mal pronóstico en pacientes con COVID-19.

BACKGROUND: COVID-19 disease, besides presenting respiratory manifestations, can affect other organs such as kidneys, gastrointestinal system, heart, and skin. So far, five clinical variants of dermatoses have been described. Few reports discuss the severity associated with the cutaneous manifestations of COVID-19 and the prognosis. AIM: To describe the clinical and histopathological patterns of dermatoses in patients with COVID-19 infection. PATIENTS AND METHODS: Prospective cohort study conducted in patients admitted to "IMSS T1" in Leon, Guanajuato, Mexico from September 2020 to January 2021. We identified those with COVID-19 dermatosis from the moment they were admitted; and those who developed them during hospitalization. Patients were invited to participate for a clinical evaluation and biopsy. The biopsies were described by an expert pathologist. RESULTS: The frequency of dermatological lesions was 15.7%. Those who developed dermatosis during their hospital stay presented higher mortality (p = 0.001) and severity of COVID-19 (p = 0.001) Vasoocclusive lesions were the most frequent in the hospital setting, and were associated to higher mortality (p = 0.003). The most frequent histopathological feature was superficial and deep thrombosis (58%). CONCLUSIONS: Patients who developed dermatologic lesions during hospitalization and those with vaso-occlusive dermatoses had higher morbi-mortality. Vaso-occlusive lesions could be considered as a poor prognostic factor.

Isolation of Malassezia spp. in HIV-positive patients with and without seborrheic dermatitis

Abstract Background Malassezia, a skin saprophyte, is frequently isolated from patients with seborrheic dermatitis, which is one of the most common dermatoses in HIV-infected patients. Its role in pathophysiology has not been defined. Objective To determine whether patients living with HIV and seborrheic dermatitis have more Malassezia than those without seborrheic dermatitis. Method This is an descriptive, observational, prospective cross-sectional study to which all adult patients living with HIV that attend the infectious disease outpatient clinic at the Dr. Manuel Gea González General Hospital were invited. Patients presenting with scale and erythema were included in Group 1, while patients without erythema were included in Group 2. Samples were taken from all patients for smear and culture. Results Thirty patients were included in each group. All patients with seborrheic dermatitis had a positive smear, with varying amounts of yeasts. In the control group, 36.7% of patients had a negative smear. The results are statistically significant, as well as the number of colonies in the cultures.Study limitations The study used a small sample size and the subspecies were not identified. Conclusions Patients with clinical manifestations of seborrheic dermatitis have larger amounts of Malassezia. Further studies need to be performed to analyze if the greater amount is related to imbalances in the microbiota of the skin.