Subperiosteal hematoma in multiple settings.

Most reports of orbital hemorrhage do not distinguish among intraconal, extraconal, and subperiosteal hemorrhages, although several reports describe isolated subperiosteal hematomas as a separate entity. We report 3 cases of subperiosteal hematoma with different etiologies but similar progression of signs and symptoms. Each patient presented with spontaneous proptosis, rarely caused by orbital subperiosteal hematoma, measuring approximately 5 mm. Over the course of 4-10 days their conditions worsened and warranted intervention. All 3 cases were treated with anterior orbitotomy, and visual acuity returned to baseline following surgery in all.