Essential thrombocythemia with non-ST-segment elevation myocardial infarction as the first manifestation: A case report

Figure 1  Preoperative and postoperative electrocardiograms.

Figure 2 Coronary angiography and percutaneous coronary intervention. A: There was no obvious stenosis in the right coronary artery; B and C: Left main (LM) bifurcation lesion with a Medina classification of 1%, 0%, 1%, 60% diffuse stenosis in the LM that extended to the ostial left anterior descending (LAD), 30% stenosis in the ostial LAD, thrombosis of the ostial LAD and proximal left circumflex (LCX), 90% stenosis in the proximal LCX, and coronary slow flow in the obtuse marginal (OM); D: Final kissing balloon technique was performed; E and F: Finally, LM showed great expansion after stent treatment, and the thrombus load was significantly decreased in the ostial and proximal LCX. There was 60% residual stenosis in the ostial LCX, with a thrombolysis in myocardial infarction flow grade of 3 in the OM. The ostial LAD showed great expansion after stent treatment.

Figure 3 Genetic testing showed that the presence of a JAK2 (exon 14) V617F mutation. The bone marrow biopsy showed that bone marrow hyperplasia was significantly active, the granulocyte/nucleated red blood cell ratio was normal, and megakaryocytes were common.