Rathke's Cleft Cyst Apoplexy in Two Teenage Sisters

Rathke's cleft cysts (RCC) are sellar-suprasellar cysts that are usually discovered incidentally given their indolent clinical course. When symptoms do arise, the most common clinical presentation is headache, visual field deficits due to visual pathway compression, diplopia due to cavernous sinus compression, chemical meningitis due to spillage of the cyst contents, endocrine dysfunction, and very rarely apoplexy. We present 2 cases of RCC in sisters who developed a sudden onset of symptoms in a manner similar to pituitary apoplexy. Interestingly, one of them had a very unusual presentation with seizure. We hypothesize that acute symptoms occur due to aggressive intracystic overproduction of mucopolysaccharides (with or without hemorrhage) and a resulting compressive syndrome or local irritation of surrounding structures by spillage of the cyst contents. RCC can be encountered incidentally in family members or may have a familiar predisposition. Since both sisters presented here developed apoplexy symptoms, we propose a more frequent follow-up with sequential imaging in patients with a family history of RCC. Transsphenoidal surgery with evacuation of the cyst contents is the treatment modality of choice, with excellent outcomes.