History of lucid interval is present in
EDH
SAH
ICH
Rupture of aneurysm
.extradural haematoma is the collection of blood in the extradural space between the dura and skull. most common site is temporoparietal region . usually , it is associated with fracture of temporoparietal region. immediately after injury, there is transient loss of consciousness and the patient soon becomes normal. later after 6-12 hours, he again falls ill and condition deteriorates. this is the time taken to develop raising intracranial pressure , coning and its effects. this crucial time gap is caleed lucid interval. (Ref : SRB&;s Manual of Surgery, 5th editin , pg no. 1095)
Trauma