JAK2-positive erythrocytosis presenting with left occipital infarction in a young adult: a case report from a resource‑limited setting

Ischemic stroke can be the initial presentation of JAK2-positive erythrocytosis consistent with polycythemia vera. Careful framing of diagnostic certainty, early hematocrit control, antithrombotic therapy, and risk-factor optimization are key, especially where resources are limited.