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CC BY-NC-ND 4.0 · Arq Neuropsiquiatr 2018; 76(12): 857
DOI: 10.1590/0004-282X20180120
Images in Neurology

Persistent craniopharyngeal canal

Canal craniofaríngeo persistente
Bernardo Carvalho Muniz
1   Instituto Estadual do Cérebro Paulo Niemeyer, Departamento de Radiologia e Diagnóstico por Imagem, Rio de Janeiro RJ, Brasil
,
Priscilla Haui Fonseca
2   Hospital Federal Cardoso Fontes, Departamento de Radiologia, Rio de Janeiro RJ, Brasil
,
Bruno Niemeyer de Freitas Ribeiro
1   Instituto Estadual do Cérebro Paulo Niemeyer, Departamento de Radiologia e Diagnóstico por Imagem, Rio de Janeiro RJ, Brasil
3   Clínica 3D Diagnose, Serviço de Radiologia, Rio de Janeiro RJ, Brasil
,
Emerson Leandro Gasparetto
4   Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ, Brasil
,
Edson Marchiori
5   Universidade Federal do Rio de Janeiro, Departamento de Radiologia, Rio de Janeiro RJ, Brasil
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A two-year-old male, with delayed neuropsychomotor development underwent computed tomography and magnetic resonance imaging ([Figure]). The diagnosis was persistent craniopharyngeal canal.

Zoom Image
Figure A: Magnetic resonance, constructive interference in steady state 3D sequence, sagittal plane; B: Magnetic resonance, T1, sagittal plane; C: Magnetic resonance, T2, axial plane; D: Computed tomography, bone window, axial plane. The persistence of the craniopharyngeal canal (arrows in C and D), and the pituitary remnant inside (arrows in A and B). Note that the remnant of the pituitary gland is lower than usual in the nasopharyngeal roof.

Persistent craniopharyngeal canal is a rare congenital anomaly of the skull base and is defined as a well-corticated osseous canal, extending from the roof of the nasopharynx to the base of the sella, over the sphenoid corpus, allowing the pituitary gland to present as a nasopharyngeal mass. Its origin may represent the remnant of the route of Rathke's pouch[1]. Computed tomography and magnetic resonance imaging evaluate the content and limits of the canal well, preventing surgical iatrogenesis, such as hypopituitarism and cerebrospinal fluid leakage[2].


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Conflict of interest:

There is no conflict of interest to declare.

  • References

  • 1 Akyel NG, Alimli AG, Demirkan TH, Sivri M. Persistent craniopharyngeal canal, bilateral microphthalmia with colobomatous cysts, ectopic adenohypophysis with Rathke cleft cyst, and ectopic neurohypophysis: case report and review of the literature. Childs Nerv Syst. 2018 Jul;34(7):1407-10. https://doi.org/10.1007/s00381-018-3747-4
  • 2 Mohindra S, Gupta K, Mohindra S. A novel minimally invasive endoscopic repair in a case of spontaneous CSF rhinorrhea with persistent craniopharyngeal canal. NeurolIndia. 2015;63(3):434-6. https://doi.org/10.4103/0028-3886.158243

Address for correspondence

Bernardo Carvalho Muniz
Instituto Estadual do Cérebro Paulo Niemeyer; Rua do Rezende, 156; 20550-220 Rio de Janeiro RJ
Brasil   

Publikationsverlauf

Eingereicht: 16. April 2018

Angenommen: 08. August 2018

Artikel online veröffentlicht:
22. August 2023

© 2023. Academia Brasileira de Neurologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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  • References

  • 1 Akyel NG, Alimli AG, Demirkan TH, Sivri M. Persistent craniopharyngeal canal, bilateral microphthalmia with colobomatous cysts, ectopic adenohypophysis with Rathke cleft cyst, and ectopic neurohypophysis: case report and review of the literature. Childs Nerv Syst. 2018 Jul;34(7):1407-10. https://doi.org/10.1007/s00381-018-3747-4
  • 2 Mohindra S, Gupta K, Mohindra S. A novel minimally invasive endoscopic repair in a case of spontaneous CSF rhinorrhea with persistent craniopharyngeal canal. NeurolIndia. 2015;63(3):434-6. https://doi.org/10.4103/0028-3886.158243

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Zoom Image
Figure A: Magnetic resonance, constructive interference in steady state 3D sequence, sagittal plane; B: Magnetic resonance, T1, sagittal plane; C: Magnetic resonance, T2, axial plane; D: Computed tomography, bone window, axial plane. The persistence of the craniopharyngeal canal (arrows in C and D), and the pituitary remnant inside (arrows in A and B). Note that the remnant of the pituitary gland is lower than usual in the nasopharyngeal roof.