A 7-year-old boy with central diabetes insipidus presenting with thickened pituitary stalk and anti-rabphilin-3A antibody positivity

Kazutaka Morota, Hiroaki Tadokoro, Kentaro Sawano, Kenichi Watanabe, Naoko Iwata, Haruki Fujisawa, Atsushi Suzuki, Yoshihisa Sugimura, Keisuke Nagasaki

研究成果: ジャーナルへの寄稿学術論文査読

5 被引用数 (Scopus)

抄録

Objectives: A highly invasive pathological diagnosis is necessary to differentiate central diabetes insipidus (CDI) with a thickened pituitary stalk. Lymphocytic infundibulo-hypophysitis (LIH) due to autoimmune involvement of the pituitary stalk is a differentiating disease, and anti-rabphilin-3A antibody (Rab3A-Ab) positivity was recently reported. Case presentation: A 7-year-old boy was diagnosed with CDI after having polyuria for two months. He showed growth hormone deficiency with reduced growth rate. Brain magnetic resonance imaging (MRI) revealed a thickened pituitary stalk. The placental alkaline phosphatase level of the cerebrospinal fluid, tumor marker for germ cell tumors, was below the level of sensitivity. No skin or bone findings suggestive of Langerhans cell histiocytosis were detected. Eight months after CDI onset, Rab3A-Ab was positive, and MRI showed shrinking of the thickened pituitary stalk, leading to the diagnosis with LIH. Conclusions: Rab3A-Ab is a useful adjunctive diagnostic tool for childhood-onset LIH.

本文言語英語
ページ(範囲)687-690
ページ数4
ジャーナルJournal of Pediatric Endocrinology and Metabolism
35
5
DOI
出版ステータス出版済み - 01-05-2022

All Science Journal Classification (ASJC) codes

  • 小児科学、周産期医学および子どもの健康
  • 内分泌学、糖尿病および代謝内科学
  • 内分泌学

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