of the temporal bone: clinical spectrum and presentation.
Caption: FIGURE 3: Sagittal T2W MRI of the skull shows a basal occipital meningoencephalocele
with protrusion toward the naso- and oropharynx.
Paucity of work and rarity of occurrence of nasoethmoidal meningoencephalocele
further highlights the importance of research in the field diagnosis and surgical management of these cases.
MRI is also the best method for identifying intracranial anomalies associated with meningoencephalocele
: holoprosencephaly, DandyWalker malformation, aqueductal stenosis, agenesis of the corpus callosum, and other midline abnormalities.
are usually congenital anomalies, although cranial trauma as a cause has been reported.
In this article, we report an unusual case of a temporal lobe meningoencephalocele
in a cranial bone (rather than a paranasal sinus) that appeared as a lytic lesion of the pterygoid process.
Many pathological masses in the nose may look like antrochoanal polyp, for example dermoid cysts, meningoencephaloceles
, teratomae or sphenochoanal polyps .
Retinoid embryopathy ranges from craniofacial dysmorphias appendagial abnormalities to meningoencephaloceles
. Risk is greatest in the first trimester.
Benign processes include nasal polyps, mucoceles, meningoencephaloceles
, chrondromas, osteomas, ossifying fibromas, and cementomas.
Some patients had multiple defects in the tegmen and dura, and some can have meningoencephaloceles
, can be seen behind the tympanic membrane.
The differential diagnosis of nasopharyngeal cysts includes adenoid hypertrophy, branchial cleft cysts, meningoceles, meningoencephaloceles
, antrochoanal polyps, sphenochoanal polyps, and malignant tumors.
According to D'Antonio et al (Imaging Clinic), trans-sphenoidal meningoencephaloceles
are always congenital.