Pituitary & hypothalamus

Aggressive and malignant pituitary tumours: does the sex matter?

PituitaryPublished Literature review of case reports, series and clinical studies

Authors' conclusion

Male sex is associated with higher prevalence and more aggressive disease, whereas women achieve more profound tumour and hormonal responses.

Study context

Population
Corticotroph and lactotroph aggressive pituitary tumours (APT) and pituitary carcinomas (PC) with sex-related data93 corticotroph, 80 lactotroph
Comparison
Men vs women with corticotroph and lactotroph aggressive pituitary tumours/pituitary carcinomas
Outcome
Corticotroph APT/PC: sex differences
Methodological detailspublished 2000 to October 2025, sex-stratified analysis
  • Published 2000 to October 2025
  • Sex-stratified analysis

Main finding

As reported in the abstract

Non-functioning lesions, M vs W

36.5% vs 17.6%

Loss of hormonal secretion, M

7.7%, n = 4/52

Complete radiological response, W vs M

22.2% vs 9.1%

Further findings

OutcomeP value
Lactotroph APT/PC: sex differencesp: 0.02
Lactotroph APT/PC: sex differences — Giant tumours, M vs W
27.3% vs 5.0%
Lactotroph APT/PC: sex differences — Invasive disease, M vs W
83.3% vs 63.6%
Lactotroph APT/PC: sex differences — Partial durable responses to temozolomide predominated in M
46.2%, n = 18/39
  • Lactotroph APT/PC: sex differences: complete tumour response to temozolomide exclusively in W: 22.7%, n = 5/22
  • Lactotroph APT/PC: sex differences: 80 lactotroph APT/PC (29 W, 51 M)

Lactotroph APT/PC: sex differences

Higher PRL levels and dopamine agonist resistance in M

Original publication

Aggressive and malignant pituitary tumours: does the sex matter? Pituitary. Published 7 March 2026. doi:10.1007/s11102-026-01656-y

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