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Joseph Junewick, MD FACR
over 6 years ago
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Coarctation of lateral ventricles

Case Detail

Anatomy: Brain-Spine
Borders
Heather Borders, MD
Diagnostic Category: Developmental or Congenital
Created: over 6 years ago
Updated: over 6 years ago
Tags: PEDS
Modality/Study Types: US
Activities:
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History

Routine exam to evaluate for hemorrhage in a preterm neonate


Case Images


Diagnosis

Coarctation of the lateral ventricles/connatal cysts

Findings

Small bilateral frontal periventricular cysts just inferior to the superolateral angle of the frontal horns of the lateral ventricles

Discussion

Synonyms for connatal cysts are coarctation of the lateral ventricles and frontal horn cysts.

These are cystic areas adjacent to the superolateral margins of the frontal horns of the lateral ventricles.

Though originally these lesions were believed to be the sequelae of ischemic insult, it is now believed that they represent a normal variant due to approximation of the walls of the frontal horns of the lateral ventricles. When the ventricular walls are close enough to touch each other it results in what sonographically appears to be a cyst.

Connatal cysts are located at or just below the superolateral angles of the frontal horns or body of the lateral ventricles and are mainly anterior to the foramina of Monro.

These cysts have been reported to resolve at follow-up studies.

Reference

January 2006 RadioGraphics, 26, 173-196. Differential Diagnosis of Intracranial Cystic Lesions at Head US: Correlation with CT and MR Imaging



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