Cited by 89Pituitary Gland Disorders and TreatmentsNeuroendocrine Tumor Research AdvancesAdrenal and Paraganglionic Tumors

Thyrotropin-Secreting Pituitary Adenomas: Outcome of Pituitary Surgery and Irradiation

Malchiodi, Elena, Profka, Eriselda, Ferrante, Emanuele, Sala, Elisa, Verrua, Elisa, Campi, Irene, Lania, Andrea Gerardo, Arosio, Maura +7 more·2014·The Journal of Clinical Endocrinology & Metabolism

Abstract

OBJECTIVE: Our objective was to describe the effects of surgery and radiotherapy on hormonal control and tumor mass in short- and long-term follow-up of TSH-secreting pituitary adenomas (TSHomas). METHODS: This was a retrospective multicenter study. RESULTS: We collected data of 70 TSHomas (70% macroadenomas). The mean follow-up was 64.4 (range 3-324) months. Overall, 97% of patients were treated with surgery; in 27% of them radiotherapy was associated. After surgery, 75% of patients normalized thyroid function, 58% normalized both pituitary imaging and hormonal profile, 9% developed pituitary deficiencies, and 3% had tumor or hormonal recurrence, all within the first 2 years after surgery. Presurgical medical treatment did not significantly improve surgical outcome (63% vs 57%). Radiotherapy controlled hypersecretion in 37% of patients within 2 years, whereas 32% of patients developed new pituitary deficiencies from 18 to 96 months from treatment. At last follow-up, 80% of patients normalized thyroid function, whereas 20% were currently on medical treatment: 85% with somatostatin analog (SSA) alone and 15% with SSA combined with methimazole. Subjects who achieved disease control had surgery as the only treatment in 80% of cases and surgery combined with irradiation in 20%. CONCLUSIONS: Surgery remains the first-choice treatment for TSHoma. If surgery is successful, recurrence is rare. When surgery is unsuccessful or contraindicated, SSA and radiotherapy are effective in controlling hyperthyroidism and tumor growth in the majority of patients. The effects of radiotherapy on TSH secretion and tumor mass are greater within the first years after treatment, whereas pituitary deficiencies may occur several years later.

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Crossref · 10.1210/jc.2013-4376

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Authors
Malchiodi, E., Profka, E., Ferrante, E., Sala, E., Verrua, E., Campi, I., Lania, A. G., Arosio, M., Locatelli, M., Mortini, P., Losa, M., Motti, E., Beck-Peccoz, P., Spada, A., & Mantovani, G.
Affiliations
  • Maria Cecilia Hospital (IT)
  • Departments of Clinical Sciences and Community Health (E.M., E.P., E.F., E.S., E.V., I.C., M.A., P.B.P., A.S., G.M.), 20112 Milan, Italy;
  • University of Milan (IT)
  • MultiMedica (IT)
  • Vita-Salute San Raffaele University (IT)
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2014-06-01
Volume
99
Issue
6
Pages
2069-2076
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1990497879
Cited by
89
References
18
Citations by year
2026: 4 · 2025: 1 · 2024: 7 · 2023: 7 · 2022: 10 · 2021: 10 · 2020: 6 · 2019: 11 · 2018: 11 · 2017: 10 · 2016: 4 · 2015: 6 · 2014: 2
FWCI
5.90
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pituitary Gland Disorders and Treatments
  • Health Sciences › Medicine › Epidemiology › Neuroendocrine Tumor Research Advances
  • Health Sciences › Medicine › Surgery › Adrenal and Paraganglionic Tumors
Keywords
TSHoma, thyrotropinoma, pituitary adenoma, pituitary surgery, radiotherapy, somatostatin analogues, hyperthyroidism, thyroid function normalization, hypopituitarism, tumor recurrence, macroadenoma, methimazole
MeSH terms
Adenoma, Adult, Aged, Combined Modality Therapy, Female, Follow-Up Studies, Humans, Male, Middle Aged, Pituitary Neoplasms, Retrospective Studies, Thyrotropin, Cranial Irradiation, Treatment Outcome, Neurosurgical Procedures, Young Adult

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