얼굴마비로 방문하여 높은 delta neutrophil index를 보였고 골수 외 침윤을 동반한 급성골수세포백혈병으로 진단된 4세 여자 환자

Abstract

Although Bell’s palsy is the most common cause of facial palsy in children, some cases have potentially fatal causes. We report a rare case of isolated facial palsy in a 4-year-old girl whose diagnosis was acute myeloid leukemia with extramedullary infiltration. The findings of laboratory investigations were nonspecific at presentation except that the delta neutrophil index was 34.5% (reference range, 0%-5%). To avoid hasty diagnosis of Bell’s palsy in children with isolated facial palsy, vigilant differential diagnosis and workup are recommended.