A systematic review of case reports was conducted by searching PubMed, Scopus, and Google scholar to identify case reports in which there is an association between Myasthenia Gravis (MG) and Myeloproliferative Neoplasms (MPNs) and know whether MG can be considered a possible neurological paraneoplastic syndrome in patients with MPNs.

Facial Nerve palsy is a neurological condition that causes partial or complete impairment of the facial nerve. Bilateral facial nerve palsy is rare with an incidence of 1 per 5,000,000. We report the case of a 34-year-old gentleman who presented with sudden-onset bilateral lower motor neuron (LMN) facial weakness.

1.7% of myeloproliferative neoplasms are associated with autoimmune conditions. Association of myasthenia gravis (MG) with chronic myeloid leukemia is reported, but its association with polycythemia vera (PV) has never been reported. We report two patients who had MG and PV with JAK2V617F mutation. Both had splenomegaly but no thymoma.