[LDH-neutrophil-lymphocyte index as a predictor of 28-day mortality in patients with COVID-19].

Background: Coronavirus disease 2019 (COVID-19) represents the greatest health crisis of our times; it was declared by WHO a pandemic in March 2020. The risk of presenting a severe disease is inter-individual, since it varies according to age, comorbidities, and immunological status, in addition to the type of SARS-CoV-2 variant. The neutrophil/lymphocyte ratio (NLR) and lactic dehydrogenase (LDH) are widely used markers to assess the severity and predict the course of the disease in patients with COVID-19, with a direct relationship of higher value-worse prognosis.

[Hipersensibility to red tattoo ink, review of a case].

Introduction: The hypersensitivity reaction associated with tattoo ink and its management represent a growing challenge, despite having precedents in diagnostic and treatment experience in other reports or case series in recent decades, no one has been found homogeneous offer that is effective and safe. Therefore, a review is presented with what has been described in pathophysiological theories, as well as therapeutic proposals and the response found in related cases that have been reported to date.

Clinical Case: 30-year-old male, with dermatosis located on the right upper extremity, affecting the inner side of the forearm and the outer side of the arm, unilateral, asymmetric, monomorphic in appearance, made up of an artificial macula, caused by red ink (tattoo), with development of papular-like lesions in original trace, pruritic, referred evolution time of one month.

[Aggressive multifocal extensive cutaneous epithelioid haemagioendothelioma. A case report].

Epithelioid haemangioendothelioma is a rare vascular tumor, first described in 1975 by Dail and Liebow as a bronchioloalveolar carcinoma. Although it usually behaves like a low-grade neoplasm, cases have been reported in which the tumor shows a high grade of malignancy, spreading rapidly throughout the body. We present the case of a 41-year-old man with dermatosis in the left thigh with rapid extension to the abdomen; the initial differential diagnoses were metastatic carcinoma versus lymphoma.