Subperiosteal orbital hematoma concomitant with abscess in a patient with sinusitis: A case report

Figure 2 Endoscopic views of the mucocele and the subperiosteal orbital collection. A: Marsupialization of the mucocele of the left posterior ethmoid sinus. An asterisk indicates the lamina papyracea; B: The lamina papyracea is covered with thin devitalized mucosa and has a blue and white appearance with a geographic pattern. The surrounding mucosa rapidly became hyperemic after the cavity pressure was eliminated; C: A blood clot was uncovered under the blue area of the lamina papyracea, and the periorbita was subsequently exposed; D: Pus (white arrow) oozed from around the blood clot.