汎下垂体機能低下症を呈したRathke's cleft cystの一例

概要

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A 41-year-old man was admitted to our hospital because of general fatigue, sexual debility and finger stiffness. Endocrinological examinations revealed that he had panhypopituitarism, resulting in secondary adrenal insufficiency, hypothyroidism and gonadal failure. Computed tomography (CT) of the head demonstrated a low density intrasellar mass, while brain magnetic resonance imaging (MRI) showed a high intensity mass extending from the intrasellar to suprasellar region in both T<SUB>1</SUB>WI and T<SUB>2</SUB>WI. The mass was removed by transsphenoidal surgery and histologically diagnosed as Rathke's cleft cyst. Replacement with hydrocortisone and levothyroxine sodium greatly improved the clinical symptoms. Rathke's cleft cyst causing panhypopituitarism is relatively rare. The clinical and endocrinological characteristics of Rathke's cleft cyst were discussed based on the findings in 49 Japanese cases including this case and two other cases we have experienced.
一般社団法人日本内分泌学会の論文