Lamina papyracea dehiscence

Dehiscence of the lamina papyracea is an anomaly of the paranasal sinuses resulting in a defect of the medial orbital wall.

There is some speculation that it might be caused by a hyperaerated ethmoid 1

Almost all patient tend to be asymptomatic, according to one study 2. Patients will have an absence of prior trauma.

Dehiscence is usually characterized by protrusion of orbital fat through a defect in the anterior ethmoid bone. The posterior limit of the dehiscence tends to be always the basal lamella while the anterior limit can be varied.

On imaging consider

Recognizing this has implications in planning sinus procedures such as functional endoscopic sinus surgery.

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Article information

rID: 58503
System: Head & Neck
Synonyms or Alternate Spellings:
  • Dehiscence of lamina papyracea
  • Dehiscence of the lamina papyracea

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Cases and figures

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