Review Question - QID 218650

A 33-year-old female gives birth to her sixth child, which was complicated by macrosomia, shoulder dystocia, and a difficult vaginal delivery. At three months of age, the patient is examined by a pediatrician who notes a significant internal rotation contracture of the right upper extremity, associated triceps and biceps weakness, and an asymmetric pupillary reflex with a notable droop of the right eyelid when compared to the contralateral side. When counseling the mother, which of the following should the treating physician note is likely to develop at long-term follow-up?