Congenital mesenchymoma transgressing the cribriform plate
Intraoperative findings included obvious tumor extension through the left cribriform plate
into the anterior cranial vault without gross intraparenchymal extension.
The lesion protruded from a fracture of the posterior cribriform plate
, and it blocked an otherwise patent choana.
1 It may be mistaken for esthesioneuroblastoma because of its neuroectodermal histologic component and features of cribriform plate
3-6) Extension of these tumors may lead into the anterior cranial fossa through the cribriform plate
No evidence of invasion and no bony destruction of the ethmoid sinuses or cribriform plate
were seen on CT, and the nasopharynx appeared to be free of disease.
The structure should be manipulated gently because an aggressive debridement might damage the olfactory mucosa or disrupt the cribriform plate
and cause a cerebrospinal fluid leak.
There was no cribriform plate
invasion or intracranial extension.
Invasion of the cribriform plate
can cause headaches, seizures, mental deterioration, or focal deficits.
Magnetic resonance imaging (MRI) detected no intracranial involvement, but it did reveal extension of the mass up to and abutting the cribriform plate
(figure 1, B and C).
Even more force results in involvement of the cribriform plate
and the lamina papyracea, which provide relatively little resistance.
1) The upper part of the uncinate process may attach solely to the lamina papyracea, the cribriform plate
, or the middle concha, or it may divide and attach to some combination of these structures.
Noncontrast computed tomography (CT) of the paranasal sinuses demonstrated extensive disease in the fight maxillary sinus, fight ethmoid sinus, and fight sphenoid sinus along with destruction of the lamina papyracea, displace ment of the globe, and erosion of the cribriform plate