Case of postpartum Parsonage-Turner syndrome

摘要

A 36-year-old primiparus woman with no previous significant medical history presented with painless acute impairment in elevation of the right arm above head level. Three days before onset, she had delivered a full-term 7 pound girl after 5 h of labor, under epidural anesthesia. Neurological examination showed right scapular winging characterized by slight medial and superior shift that increased with arm abduction. Three weeks after symptom onset needle electromyography showed fibrillation potentials in the right serratus anterior muscle. Complete blood tests, including autoimmune screening, were unremarkable. A chest radiograph was normal.