Brachial Plexus Palsy and Ptosis in a Newborn

A term neonate was brought to the outpatient department on day 9 of life with complaints of decreased movements of the left upper limb. She was born at 40 weeks, weighing 3750 grams, to a gravida 2 para 1 mother by vaginal delivery with a history of shoulder dystocia. On examination, the baby was active and alert, and she showed high quality movements, but there was absence of movements of the left arm along with ptosis in the left eye (Video 1). The left upper limb was flaccid, with absent movements at the shoulder, elbow and wrist, and absent grasp reflex.

source https://www.jpeds.com/article/S0022-3476(23)00225-1/fulltext?rss=yes