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Case Reports
. 2020 Dec 14;34(3):395-399.
doi: 10.1515/jpem-2020-0535. Print 2021 Mar 26.

IgG4-related hypophysitis in adolescence

Ved Bhushan Arya  1 , Sarra Abu El-Gasim  1 , Sreena Das  2 , Zita Reisz  3 , Bassel Zebian  4 , David D'Cruz  5   6 , Andrew King  3 , Tim Hampton  7 , Simon J B Aylwin  8 , Ritika R Kapoor  1   9 , Charles R Buchanan  1
Affiliations
Case Reports

IgG4-related hypophysitis in adolescence

Ved Bhushan Arya et al. J Pediatr Endocrinol Metab. .

Abstract

Objectives: IgG4-related hypophysitis is a novel clinical disease entity, which is typically seen in the sixth decade of life and is typically complicated by hypopituitarism. We describe an adolescent female with IgG4-related hypophysitis with normal pituitary function and summarize the relevant literature.

Case presentation: A 11.8-year-old girl presented with headache and left VI cranial nerve palsy. MRI brain identified an enlarged pituitary gland. Endocrine investigations revealed normal pituitary function. She underwent a transsphenoidal biopsy of the pituitary gland, and histological examination confirmed the diagnosis of IgG4-related hypophysitis. Serum IgG4 concentrations were normal and no evidence of other organ involvement was found. Although the patient tested strongly positive for TB on an interferon gamma release assay, pituitary biopsy was negative for granuloma formation and acid-fast bacilli (Ziehl-Neelson staining). IgG4-related hypophysitis was treated with oral prednisolone and mycophenolate-mofetil with a good response.

Conclusions: We describe to the best of our knowledge, the youngest patient in the published literature with IgG4-related hypophysitis presenting without pituitary insufficiency. A literature review identified only five cases of IgG4-related hypophysitis in adolescence. Serum IgG4 concentrations were normal in all, except one of the adolescent patients reported so far, and appear unhelpful in diagnosis in this age group.

Keywords: IgG4-related hypophysitis; adolescence; glucocorticoids; mycophenolate mofetil; pituitary mass; tuberculosis.

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References

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