An 81-year-old man with cerebral atrophy falls at home and strikes his head. Two weeks later, he presents with progressive confusion, headache, and gait disturbance. Vital signs show BP 168/92, HR 88, RR 16, temp 37°C. CT head reveals a crescent-shaped extra-axial hyperdense collection crossing suture lines. He denies focal neurologic deficits. Which vascular structure was most likely torn during the initial trauma?
- A)Anterior spinal artery
- B)Bridging veinsGABARITO
- C)Middle meningeal artery
- D)Lenticulostriate arteries
- E)Posterior inferior cerebellar artery
Explicação
Bridging veins is the correct answer because subdural hematoma classically occurs after tearing of bridging veins, especially in older adults with cerebral atrophy or in shaken infants, and appears crescent-shaped on CT. Ver explicação completa e trilha adaptativa →