A high platelet count, or thrombocytosis, is diagnosed when platelet levels are greater than 450,000 platelets per microliter ...

A push for answers led to a rare blood disorder diagnosis after Joy’s symptoms were initially dismissed.

Polycythemia vera and essential thrombocythemia are the most common chronic myeloproliferative neoplasms; their molecular basis has been appreciated only recently and is briefly discussed in this ...