Case mistaken for leukemia after mRNA COVID-19 vaccine administration: A case report

Figure 1 Computed tomography imaging. A: Initial thorax imaging; B: Day 13 thorax imaging; C: Initial hospitalization; D: Day 13 of hospitalization. Thorax computed tomography showed no findings indicating infection, but splenomegaly and liver cirrhosis were confirmed on abdomino-pelvic computed tomography. Splenomegaly improved on day 13 of hospitalization.

Figure 2 White blood cell count during hospitalization. WBC: White blood cell; HD: Hospitalization day.

Figure 3 Peripheral blood smear and bone marrow examination. A: Peripheral blood smear; B: Bone marrow aspiration; C: Bone marrow biopsy. Peripheral blood smear showed leukocytosis with neutrophils and immature cells. Bone marrow aspiration and biopsy sample revealed reactive marrow.