Lamina papyracea dehiscence

Dehiscence of the lamina papyracea is an anomaly of the paranasal sinuses represented by a defect of the medial orbital wall. It is thought to be a benign congenital variant of no clinical significance.

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

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

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 the basal lamella while the anterior limit may vary.

On imaging consider:

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Article information

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

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Cases and figures

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