Interhemispheric cyst
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A fetal interhemispheric cyst refers to an interhemishperic cyst diagnosed in utero. It is seen as a cystic collection located in the interhemispheric fissure, with or without communication with the ventricular system.
Pathology
Associations
- agenesis of the corpus callosum: strong association
Differential diagnosis
Considerations include:
- midline fetal arachnoid cyst: no associated agenesis of the corpus callosum
- cyst-like lesions related to physiologic median structures
- enlargement of the cavum septi pellucidi 2
- enlargement of the cavum vergae 2
See also
-<li>midline<a href="/articles/arachnoid-cyst-fetal-presentation"> fetal arachnoid cyst</a>: no associated agenesis of the corpus callosum</li>- +<li>midline<a href="/articles/arachnoid-cyst-fetal-presentation-1"> fetal arachnoid cyst</a>: no associated agenesis of the corpus callosum</li>
-<li>enlargement of the cavum septi pellucidi <sup>2</sup>- +<li>enlargement of the <a href="/articles/cavum-septum-pellucidum-3">cavum septi pellucidi </a><sup>2</sup>
-<li>enlargement of the cavum vergae <sup>2</sup>- +<li>enlargement of the <a href="/articles/cavum-vergae">cavum vergae</a> <sup>2</sup>
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