
21/08/2025
๐งโ๐ซ๐ฉโ๐ซ ๐๐ฎ๐๐ฒ ๐ผ๐ณ ๐ง๐ต๐ฒ ๐ช๐ฒ๐ฒ๐ธ โ ๐ญ๐ญ๐ต ๐
At Expert-i, weโre thrilled by the engagement and insightful responses to last weekโs quiz!
Itโs always inspiring to see radiologists coming together to exchange knowledge and expertise.
๐ก Last Weekโs Case Recap:
A Brain MRI study.
๐ง๐ฒ๐ฐ๐ต๐ป๐ถ๐พ๐๐ฒ:
โ
Axial T1, T2, FLAIR, Coronal T2, Sagittal T1 W Sequences.
โ
Diffusion weighted sequences.
๐ Your Diagnosis Choices Were:
1๏ธโฃ Dandy-Walker malformation.
2๏ธโฃ Rhombencephalosynapsis.
3๏ธโฃ Joubert Syndrome.
๐ Correct Answer: ๐๐ต๐ผ๐ถ๐ฐ๐ฒ ๐ก๐ผ. ๐ฏ
๐ Here is the full study report for your reference:
๐๐๐ก๐๐๐ก๐๐ฆ:
๐๐ฒ๐ฟ๐ฒ๐ฏ๐ฒ๐น๐น๐๐บ:
๐ Small dysplastic cerebellar vermis with median cleft noted.
๐ Thickened, elongated, and horizontally oriented superior cerebellar peduncles with deep interpeduncular fossa giving the characteristic โMolar Tooth Signโ.
๐ This is associated with "Batwing" configuration of the 4th ventricle.
๐๐
๐๐ฟ๐ฎ-๐ฎ๐
๐ถ๐ฎ๐น ๐๐ฝ๐ฎ๐ฐ๐ฒ๐:
๐ Prominent extra-axial CSF spaces, more noted at the bi-frontal & bi-temporal regions.
๐ The calvarial veins are seen parallel to the inner plates of both frontal bones.
๐ข Cerebral parenchyma: Normal. No significant signal alteration of the white matter.
๐ข Brainstem: Normal.
๐ข Midline shift: None.
๐ข Sella: Normal appearance.
๐ข Visualized orbits: Normal.
๐ข Vascular system: No gross vascular anomalies identified.
๐ข Paranasal sinuses and mastoid air cells: Clear.
โจ ๐ฐ๐ด๐ท๐น๐ฌ๐บ๐บ๐ฐ๐ถ๐ต
๐ต Picture is suggestive of Joubert Syndrome.
๐ต Picture of Benign Enlargement of the Subarachnoid Spaces (BESS).
๐ฌ Thank you to everyone who participated and shared their reasoning. Your contributions enrich our collective learning!
๐จ Stay tuned for the next week quizโcoming soon. Letโs keep learning together!