Contrast-enhancing renal masses are likely to be malignant in over 90% of cases due to the high diagnostic accuracy of abdominal imaging. In this situation, tumor biopsy is unnecessary and should be managed as a renal cell carcinoma. Resection remains the only potentially curative treatment. However, as in the case herein presented, comorbidities can prevent surgical resection. Radioembolization with Y-90 microspheres is an intra-arterial procedure capable of delivering high doses of radiation to tumors. The present case demonstrates the concept of partial radiation nephrectomy in treating renal tumors with malignant characteristics in patients not amenable to surgery.

Introduction: Cases of acute myocarditis have been after administration of the BNT162b2 and Ad26.COV2.S vaccine.Objective: Describe another possible mechanism of myocarditis after COVID-19 vaccination.Case presentation: We describe the clinical case of a 72-year-old female with pleuritic chest pain one week after the third of the BNT162b2 mRNA vaccine. Serological tests for cardiotropic pathogens were negative, and autoimmunity screening was positive with anti-nuclear antibody (ANA) in 1:160 dilu-tion, Anti-double-stranded DNA (anti-dsDNA), and anti-histone antibodies. 18F-fluoro-deoxy-glucose (FDG) positron emission tomography/computed tomography (PET/CT) showed a focal myocardial and pericardial inflammatory process in the cardiac apex.Results and discussion: Systemic lupus erythematosus (SLE) diagnosis was made with myocardial affec-tion. As far as we know, this is the first report of a case of lupus myocarditis after the COVID-19 vaccine.Conclusion: Given the pathogenic rationales, the association between SLE and myocarditis should be considered.(c) 2022 Elsevier Espana, S.L.U. and Sociedad Espanola de Reumatologi acute accent a y Colegio Mexicano de Reumatologi acute accent a. All rights reserved.