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Immune Thrombocytopenia Secondary to COVID-19 Infection.

I thrombocytopenia (ITP) is a relatively rare condition characterized by low platelet counts and a tendency for spontaneous bleeding, and is assumed to be autoimmune mediated. Viral infections have been described as potential triggers for this condition. We describe a case of a sudden and severe thrombocytopenia in a 70-year-old patient who tested positive coronavirus disease-2019 (COVID-19). Since first described in December 2019, in Wuhan (China), the global pandemic of the novel severe acute respiratory syndrome coronavirus-2 (SARSCoV-2) has been reported to cause the COVID-19 disease. Among many other clinical and laboratory manifestations of this virus, thrombocytopenia has been described as a common laboratory finding in COVID-19 patients affecting up to one-third of patients, although the thrombocytopenia described is usually mild and asymptomatic [1]. Immune thrombocytopenia (ITP) is characterized by a platelet count that is less than 100 × 109/L and is assumed to be autoimmune mediated. The clinical manifestation is usually skin and mucosal bleeding found in up to 2/3 of patients [2]. Several case reports of ITP secondary to COVID-19 infection have been described in the literature [3]. We report here a case of a sudden severe thrombocytopenia in a 70-year-old patient in the recovery stages of COVID-19.