What is a lamina papyracea defect?
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.
What is the lamina papyracea?
The lamina papyracea (LP) is the weakest point of the medial wall of the orbit, which forms a connecting line between paranasal sinuses and the orbit. Also, the ethmoidal foramina along the LP are life-saving anatomical landmarks and allow transverse passage of the ethmoidal arteries into ethmoidal cells.
Where is lamina papyracea found?
ethmoid bone
The lamina papyracea, also known as the orbital lamina of the ethmoid bone, is the principal component of the medial wall of the orbit, and also the lateral surface of the ethmoid air cells.
Where is the ethmoid?
skull
The ethmoid bone is a cube-shaped bone located in the center of the skull between the eyes. It helps form the walls of the eye socket, or orbital cavity, as well as the roof, sides, and interior of the nasal cavity.
What is Enophthalmus?
Introduction. Enophthalmos is defined as the posterior displacement of the globe in an anteroposterior plane within the orbit. This is to be distinguished from hyperglobus, hypoglobus, esoglobus, and exoglobus.
Which part of orbit is weakest?
The weakest portion of the orbit is the thin orbital floor (maxilla) and the lamina papyracea (ethmoid bone) medially and inferiorly.
Will ethmoid sinusitis go away on its own?
Most people should find that ethmoid sinusitis resolves on its own with some basic self-care and home remedies. If a doctor thinks that ethmoid sinusitis is due to a bacterial infection, they may prescribe antibiotics, which are usually very effective.
How did lamina papyracea get its name from?
lamina papyracea. Synonym for the orbital plate of the ethmoid bone, which forms part of the medial wall of the orbit. It is thus named because it is as thin as paper and this may contribute to an infection of an ethmoidal sinus spreading into the orbit and resulting in orbital cellulitis.
Why is lamina papyracea called orbital cellulitis?
Synonym for the orbital plate of the ethmoid bone, which forms part of the medial wall of the orbit. It is thus named because it is as thin as paper and this may contribute to an infection of an ethmoidal sinus spreading into the orbit and resulting in orbital cellulitis. See orbital cellulitis.
How does lamina papyracea spread to the orbits?
The infection can spread directly through the thin lamina papyracea into the orbits. (6,16,17) The most common radiologic finding on CT was bony defect of lamina papyracea and/or medial superior orbital rim.
Which is most common radiologic finding of lamina papyracea?
Fracture of the lamina papyracea is usually best demonstrated on CT. 6,16,17) The most common radiologic finding on CT was bony defect of lamina papyracea and/or medial superior orbital rim.