Growing Rathke's cleft cyst
Diagnosis almost certain
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Rathke cleft cysts are lined by epithelium that can contain goblet cells. These cells can secrete fluid into the cyst lumen thus over time they can enlarge and cause compression to suprasellar structyesstructures such as the chiasm and hypothalamus (although this is unusual). The snowman pattern is due to passageextension of the cystscyst through the diaphragmaticdiaphragma sellae hiatus with "waisting" at the hiatus.
-<p>Rathke cleft cysts are lined by epithelium that can contain goblet cells. These cells can secrete fluid into the cyst lumen thus over time they can enlarge and cause compression to suprasellar structyes such as the chiasm and hypothalamus (although this is unusual). The snowman pattern is due to passage of the cysts through the diaphragmatic hiatus with "waisting" at the hiatus.</p>- +<p>Rathke cleft cysts are lined by epithelium that can contain goblet cells. These cells can secrete fluid into the cyst lumen thus over time they can enlarge and cause compression to suprasellar structures such as the chiasm and hypothalamus (although this is unusual). The snowman pattern is due to extension of the cyst through the diaphragma sellae hiatus with "waisting" at the hiatus.</p>