Pituitary & hypothalamus

Successful treatment of medically and surgically refractory lymphocytic hypophysitis with fractionated stereotactic radiotherapy: a single-center experience and systematic literature review

PituitaryPublished Case series (single-centre experience) and systematic literature review

Authors' conclusion

Focused radiation, including FSRT, can play a role in symptomatic relief, effective mass shrinkage, and minimizing radiation exposure to critical surrounding structures in patients with refractory LH. However, further research efforts are necessary to better clarify its effects and optimal dose planning.

Study context

Population
Patients with lymphocytic hypophysitis (LH) refractory to medical therapy and surgery; age 37 to 75 years, median 58; 3 from authors' institution and 5 from existing literature3 institutional, 5 literature
Participants
8 patients
Exposure
Stereotactic radiosurgery (SRS) vs FSRT
  • SRSn = 3
Outcome
Response after focused radiotherapy
Methodological detailssingle-center, PRISMA guidelines, Mean irradiation volume 2.2 cm³
  • Single-center
  • PRISMA guidelines
  • Mean irradiation volume 2.2 cm³

Main finding

As reported in the abstract

Resolution of visual field defects
4 patients
Improvement in associated focal neurologic deficits
2 patients
Clinical response after a single course of radiation
7 patients
Required a second course
1 patient
Complete radiologic response
3 patients
Partial radiologic response
remaining patients

Observational data: associations, not effects.

Further findings

Endocrine status and glucocorticoid use · at least 12-month follow-up

No change in pre-existing endocrine status after radiation, except in
1 patient
Stable on low-dose glucocorticoid
6 patients
Discontinued glucocorticoid entirely without relapse
1 patient

Original publication

Successful treatment of medically and surgically refractory lymphocytic hypophysitis with fractionated stereotactic radiotherapy: a single-center experience and systematic literature review. Pituitary. Published 25 January 2024. doi:10.1007/s11102-023-01367-8

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