A 17-year-old boy is struck in the temple during a baseball game and briefly loses consciousness. He regains alertness and feels well for an hour, then becomes increasingly somnolent and develops a fixed dilated pupil. CT scan shows a biconvex hyperdense collection that does not cross suture lines. Which vessel was most likely ruptured?
- A)Bridging veins
- B)Superior sagittal sinus
- C)Anterior cerebral artery
- D)Middle meningeal arteryGABARITO
- E)Posterior communicating artery
Explicação
Middle meningeal artery is the correct answer because epidural hematoma often follows temporal bone trauma at the pterion, producing a lucid interval and a biconvex collection that does not cross suture lines. Ver explicação completa e trilha adaptativa →