Subdural hematoma. A subdural hematoma (American spelling) or subdural haematoma (Commonwealth spelling), also known as a subdural haemorrhage (SDH), is a type of hematoma, usually associated with traumatic brain injury. Blood gathers between the inner layer of the dura mater and the arachnoid mater.
At 592,800 square kilometres (228,900 sq mi), Madagascar is the world's 46th largest country and the fourth-largest island. The country lies mostly between latitudes 12Â°S and 26Â°S, and longitudes 43Â°E and 51Â°E.
Of the 285 bird species recorded on Madagascar, 105 are found nowhere else on earth, and a handful of others are shared only with the neighbouring Comoro Islands; one has been declared extinct.