RESUMO
Transient acantholytic dermatosis, also known as Grover's disease, is an acquired dermatological condition characterised by the sudden emergence of pruritic, erythematous papules, or vesicles, primarily affecting the trunk. It is observed most commonly in men older than 50 years. Histology typically demonstrates a pattern of focal acantholysis within the epidermis, dyskeratotic cells including corps ronds and grains, and a variable perivascular lymphocytic infiltrate in the upper dermis. While its aetiology is not well understood, recognised triggers include excessive heat, sweating, sun exposure, and certain drugs, such as chemotherapy agents. More recently, isolated reports of Grover's disease and Grover-like skin eruptions have been described in patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and following COVID-19 vaccination. We report the case of a 65-year-old man who presented to secondary care with a nine-day history of an intensely pruritic rash over his chest and back. On internal medical workup, he was found to have SARS-CoV-2 infection and rapidly deteriorated due to coronavirus disease 2019 (COVID-19)-associated pneumonia, necessitating a 10-day hospital admission for supportive care. Diagnostic workup of his skin lesions confirmed transient acantholytic dermatosis (Grover's disease), which resolved following a course of oral corticosteroids. This case underscores the rare but significant association between Grover's disease and COVID-19, contributing valuable insights to the evolving body of literature on cutaneous lesions associated with SARS-CoV-2 infection, and highlighting the importance of considering SARS-CoV-2 screening as part of the diagnostic workup for patients presenting with Grover-like skin eruptions.