Subperiosteal Abscess of the Orbit

• Seven cases of subperiosteal abscess (SPA) of the orbit are reported. Anatomic relationships shared by the orbits, paranasal sinuses, and facial venous system explain the rapid development of SPA after periorbital infection. Computed tomography and echography allow distinction between SPA and other stages of orbital inflammation that are often indiscriminately grouped under the rubric of orbital cellulitis. These techniques suggest that...