Post-traumatic subgaleal hematoma with subperiosteal orbital extension.

Delayed, progressive proptosis is rare following mild head trauma. We describe a case of subperiosteal orbital extension of a subgaleal hematoma and review ten cases from the literature of solitary subperiosteal hematoma and one of subgaleal hematoma with orbital extension. A patient profile, mode of clinical presentation, management options, and an algorithm for management are presented.