Subperiosteal hematoma

Traumatic subperiosteal hematoma (SpH) usually presents late, after the initial trauma. It is generally seen in young males.

It almost always presents in the superior orbit and usually presents late where there is gross hypoglobus, dimness of vision, intractable diplopia, or pain. These hematomas develop between the bone and separated periosteum in the orbital roof. This usually occurs as a result of direct rupture of the subperiosteal blood vessels or as an extension of a subgaleal hematoma.