A 32-year-old woman undergoes excision of a posterior cervical triangle mass. Postoperatively, she reports difficulty retracting her scapula medially toward the spine. Vital signs are stable (BP 118/76, HR 82, RR 14, Temp 37°C). Physical examination reveals preserved shoulder abduction and no scapular winging. Electromyography shows denervation of the rhomboid muscles. She denies neck pain or trapezius weakness. Which of the following nerves was most likely injured during the procedure?
- A)Long thoracic nerve
- B)Thoracodorsal nerve
- C)Dorsal scapular nerveGABARITO
- D)Suprascapular nerve
- E)Axillary nerve
Explicação
The dorsal scapular nerve supplies the rhomboids, which retract the scapula toward the vertebral column. Isolated impairment of scapular retraction without serratus anterior weakness or deltoid deficits points to this nerve. Ver explicação completa e trilha adaptativa →