Vermian lobulation

Last revised by Rohit Sharma ◉ on 31 Jan 2020

Citation, DOI, disclosures and article data

Citation:

Thapa S, Sharma R, Glick Y, Vermian lobulation. Reference article, Radiopaedia.org (Accessed on 30 Sep 2023) https://doi.org/10.53347/rID-57164

DOI:

https://doi.org/10.53347/rID-57164

Permalink:

https://radiopaedia.org/articles/57164

rID:

57164

Article created:

10 Dec 2017, Subash Thapa

Disclosures:

At the time the article was created Subash Thapa had no recorded disclosures.

View Subash Thapa's current disclosures

Last revised:

31 Jan 2020, Rohit Sharma ◉

Disclosures:

At the time the article was last revised Rohit Sharma had no recorded disclosures.

View Rohit Sharma's current disclosures

Revisions:

3 times, by 3 contributors - see full revision history and disclosures

Systems:

Obstetrics, Central Nervous System

Sections:

Tags:

Synonyms:

Vermis development

Evaluation of vermian lobulation is essential in assessment of the vermian maturity. MRI is a useful tool in assessment of the fetal posterior fossa.

Radiographic features

Normal vermian lobulation by weeks ¹:

by 21 weeks: the prepyramidal fissure can be seen between the tuber and pyramis
21 to 22 weeks: the preculminate fissure can be seen in between the central lobule and culmen.
24 weeks: the secondary fissure can be seen between the pyramis and uvula
from 27 weeks: all vermian lobules and fissures become visible

References

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