Connatal cyst

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[edit] Discussion of Connatal cyst

  • Connatal cysts are AKA coarctation of the lateral ventricles and frontal horn cysts.
  • Connatal cysts are cystic areas adjacent to the superolateral margins of the body and frontal horns of the lateral ventricles.
  • Believed to represent a normal variant.


  • 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.
  • The diagnosis of subependymal cyst is the most probable if the lesion is located below the external angle and posterior to the foramen of Monro.
  • Periventricular leukomalacia should be considered when it is above the angle.

[edit] Imaging Findings for Connatal cyst

  • As above, 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.

[edit] Images

Patient #1

[edit] See Also

[edit] External Links

[edit] References for Connatal cyst