“…5,9,14 Usually, the spontaneous resolution takes place in weeks and rarely in days, 2-4,9,14-16 but in rare circumstances the EDH can resolve within hours after trauma. 5,[8][9][10]14,17,18 The mechanisms responsible for the spontaneous resolution of the EDH in acute stage are entirely different than that of chronic resolution. 5,9,14,[17][18][19] The mechanism behind chronic resolution of EDH is that there is formation of fibrovascular neomembrane and granulation tissue, acting as a semipermeable membrane like absorbing structure through which there is transfer of the clot into diploic bone or extracranial space through the fractures.…”