Transsphenoidal canal
Updates to Case Attributes
The persistent hypophyseal (craniopharyngeal) canal is a rare congenital skull base defect. It extends from the floor of the sella turcica to the nasopharynx and is less than 1.5 mm in diameter. The term craniopharyngeal canal is also used to describe a rarer and much larger bony canal in the same location, which has been referred to as the large craniopharyngeal canal or transsphenoidal canal 1.
Provided other names to describe this skull base defect, including the large craniopharyngeal canal and transsphenoidal canal, which differ from the craniopharyngeal canal or persistent hypophyseal canal by virtue of having a greater size and association with special craniofacial anomalies. It has also been suggested that the large craniopharyngeal canals or transsphenoidal canals are related not to the persistent craniopharyngeal canal but rather to transsphenoidal meningoencephalocele2.
- +<p><strong>The persistent hypophyseal (craniopharyngeal) canal </strong>is a rare congenital skull base defect. It extends from the floor of the sella turcica to the nasopharynx and is less than 1.5 mm in diameter. The term craniopharyngeal canal is also used to describe a rarer and much larger bony canal in the same location, which has been referred to as the large craniopharyngeal canal or transsphenoidal canal<sup> 1</sup>.</p><p>Provided other names to describe this skull base defect, including the <strong>large craniopharyngeal canal </strong>and <strong>transsphenoidal canal</strong>, which differ from the craniopharyngeal canal or persistent hypophyseal canal by virtue of having a greater size and association with special craniofacial anomalies. It has also been suggested that the large craniopharyngeal canals or transsphenoidal canals are related not to the persistent craniopharyngeal canal but rather to transsphenoidal meningoencephalocele<sup>2.</sup></p>
References changed:
- 1. Currarino G, Maravilla K, Salyer K. Transsphenoidal Canal (Large Craniopharyngeal Canal) and Its Pathologic Implications. AJNR Am J Neuroradiol. 1985;6(1):39-43. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8334577">PMC8334577</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/3918419">Pubmed</a>
Updates to Study Attributes
There is a large 6.6 mm defect in the midline of sphenoid body extending from the sellar floor to the nasopharynx (craniopharyngeal canal ) associated with transsphenoidal cephaloceles encephalocele
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