Subdural hematoma
From Memory Alpha, the free Star Trek reference
A subdural hematoma is a type of brain injury similar in its nature to an epidural hematoma. (VOY: "Gravity")
Doctor Beverly Crusher and nurse Alyssa Ogawa had to prepare an emergency surgery for a comatose patient with a subdural hematoma, the Cardassian Joret Dal, in 2370. (TNG: "Lower Decks")
