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Rathke's cleft cyst with large frontal extension: unusual shape and pathomechanism of its formation
1Department of Neurological Surgery, Chiba University School of Medicine, Kawatetsu Chiba Hospital, Japan. saeki@med.m.chiba-u.ac.jp
Abstract:
The patient was a 62 year old woman who presented with a visual field defect. Magnetic resonance images showed an intra-and supra-sellar low intensity mass on T1 weighted images. The preoperative diagnosis was craniopharyngioma, Rathke's cleft cyst (RCC) or arachnoid cyst. The patient underwent transsphenoidal surgery & the pathological diagnosis was RCC. We conclude that although RCC has a round, ovoid or dumb-bell shaped configuration, it may present a unusual shape in cases with preconditions, as were seen in our patient.
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