Myelodysplastic syndrome in a case of new-onset pancytopenia.

Myelodysplastic syndrome (MDS) is an infrequent cause of pancytopenia, which is a decrease in all three peripheral blood cell lines. We report the case of new-onset pancytopenia following administration of a COVID-19 vaccine and recurrent Zosyn use who was later found to have myelodysplastic syndrome.