• Matthew J Samec, Ali Khawaja, Ashokakumar M Patel, and Sagar B Dugani.
• Internal Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA.
• BMJ Case Rep. 2020 May 27; 13 (5).

AbstractCOVID-19 is a novel viral infection caused by severe acute respiratory syndrome-coronavirus-2 virus, first identified in Wuhan, China in December 2019. COVID-19 has spread rapidly and is now considered a global pandemic. We present a case of a patient with minimal respiratory symptoms but prominent bilateral groundglass opacities in a 'crazy paving' pattern on chest CT imaging and a negative initial infectious workup. However, given persistent dyspnoea and labs suggestive of COVID-19 infection, the patient remained hospitalised for further monitoring. Forty-eight hours after initial testing, the PCR test was repeated and returned positive for COVID-19. This case illustrates the importance of clinical vigilance to retest patients for COVID-19, particularly in the absence of another compelling aetiology. As COVID-19 testing improves to rapidly generate results, selective retesting of patients may uncover additional COVID-19 cases and strengthen measures to minimise the spread of COVID-19.© BMJ Publishing Group Limited 2020. No commercial re-use. See rights and permissions. Published by BMJ.

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