Rathke cleft cyst presenting with hyponatremia: an unusual presentation

Walavan Sivakumar, Chad D. Cole, William T. Couldwell
2011 Neurosurgical Focus  
The authors report a case of Rathke cleft cyst presenting with severe hyponatremia. A 33-year-old man suffered sudden severe headaches, visual changes, dizziness, nausea, vomiting, and a metallic taste in his mouth. Initial laboratory values demonstrated severe hyponatremia. Magnetic resonance imaging revealed a cystic lesion with questionable intracystic hemorrhage, concerning for pituitary apoplexy. Transsphenoidal decompression and drainage of the cyst confirmed the diagnosis of Rathke cleft
more » ... sis of Rathke cleft cyst and resolved the symptoms. Postoperative follow-up studies at 6 months demonstrated normal endocrine function and no evidence of a cyst. key WorDS • Rathke cleft cyst • hyponatremia • transsphenoidal surgery • pituitary • endocrine dysfunction • intrasellar cyst • pituitary apoplexy Abbreviation used in this paper: RCC = Rathke cleft cyst.
doi:10.3171/2011.4.focus1180 pmid:21721869 fatcat:5kmjfk67tbexjjxeqh2cbhzkqu