#Hypophysitis
ICYMI: New content online: Anti-PIT1 hypophysitis after immune checkpoint inhibitor treatment
Anti-PIT1 hypophysitis after immune checkpoint inhibitor treatment
Nature Reviews Endocrinology, Published online: 27 February 2025; doi:10.1038/s41574-025-01099-8Anti-PIT1 hypophysitis is a form of paraneoplastic autoimmune hypophysitis. The condition is attributable to the ectopic expression of pituitary-specific…
www.nature.com
March 1, 2025 at 2:30 PM
So easy to forget that new therapies, as marvellous as they might be, can present with a myriad side effects. 6/12 of Pembrolizumab and I’m now thyrotoxic, with +/- hypophysitis. Rx by a second specialty service has commenced. I’m hopeful of symptom resolution. #Sèzary
December 13, 2024 at 10:31 AM
That can lead to:
- pneumonitis
- thyroiditis
- myocarditis
- hypophysitis
- hepatitis
- colitis
etc.,

Some of which have extremely poor prognosis, e.g., ICI myocarditis.
Immune checkpoint inhibitor–associated myocarditis: Incidence, risk factors, and clinical outcomes in a global real-world cohort.
11177Background: Immune checkpoint inhibitor (ICI)-associated myocarditis is a rare but life-threatening immune-related adverse event (irAE), with a mortality rate of 30–50%. Most available evidence c...
ascopubs.org
January 7, 2026 at 1:53 AM
Endocrine disorders commonly occur after cancer #immunotherapy:

🔹Hypothyroidism
🔹Thyroiditis
🔹Hypophysitis
🔹Type 1 Diabetes

Monitor thyroid, pituitary/adrenal, glycemic control initially and periodically in all patients on immunotherapy.
#medtwitter
pubmed.ncbi.nlm.nih.gov/35477029/
December 25, 2023 at 4:26 AM
#Pembrolizumab effective also for CTCL (Sézary Syndrome - in my case). Significant s/es however… hypophysitis, thyroiditis, pneumonitis. But, I live!
June 1, 2025 at 2:29 AM
"In cases of severe, refractory or worsening #hypophysitis after initial therapy with #glucocorticoids, non-glucocorticoids immunosuppressive therapy could be a safe and effective alternative to control symptoms and #pituitary stalk thickening." -- Janaki Vakharia, MD. #ENDO2025 #EndoSky
July 13, 2025 at 6:34 PM
Here, Castinetti and colleagues discuss the current understanding of the epidemiology, pathophysiology, diagnosis and clinical management of hypophysitis. (£) go.nature.com/3Xq37o6 #EndoSky #Medsky
November 28, 2025 at 10:51 AM
Concomitant Immune Checkpoint Inhibitors Induced Central and Primary Adrenal Insufficiency: A Diagnostic Challenge. Read more in #JCEMCaseReports: bit.ly/42UM6pd #ImmuneCheckpointInhibitors #Hypophysitis #Adrenalitis
November 10, 2025 at 9:02 PM
Response to commentary: "Primary #Hypophysitis and the benefits of Glucocorticoids, a still unresolved question’’ by Aysa Hacioglu et al

EJE Volume 192, Issue 1, January 2025
👉 doi.org/10.1093/ejen...
ESE Members free access via 👉 my.ese-hormones.org
March 26, 2025 at 2:25 PM
COVID-19 mRNA Jabs Can Cause An Array Of Rare Pituitary Disorders Including Hypophysitis, Pituitary Apoplexy And Even Enlarge Pituitary Adenomas!

www.thailandmedical.news/news/covid-1...
COVID-19 mRNA Jabs Can Cause An Array Of Rare Pituitary Disorders Including Hypophysitis, Pituitary Apoplexy And Even Enlarge Pituitary Adenomas! - Thailand Medical News
www.thailandmedical.news
February 29, 2024 at 10:34 AM
We know that the pituitary gets clobbered. The drop in GnRH and reduced libido and performance in men... That's been demonstrated.

Hypophisitis yep!

doi.org/10.1007/s111...
Hypophysitis in COVID-19: a systematic review - Pituitary
Purpose This systematic review aims to collect and examine recent research findings regarding hypophysitis in COVID-19 patients. Method We conducted a comprehensive literature review in English on the...
doi.org
December 3, 2024 at 6:42 AM
From our May issue: Frederic Castinetti & colleagues discuss the current understanding of the epidemiology, pathophysiology, diagnosis and clinical management of hypophysitis (£) go.nature.com/3OKkqzk #MedSky #EndoSky
April 23, 2026 at 9:58 AM
New content online: Anti-PIT1 hypophysitis after immune checkpoint inhibitor treatment
Anti-PIT1 hypophysitis after immune checkpoint inhibitor treatment
Nature Reviews Endocrinology, Published online: 27 February 2025; doi:10.1038/s41574-025-01099-8Anti-PIT1 hypophysitis is a form of paraneoplastic autoimmune hypophysitis. The condition is attributable to the ectopic expression of pituitary-specific…
www.nature.com
February 27, 2025 at 2:29 PM
Modeling of T cell-mediated autoimmune pituitary disease using human induced pluripotent stem cell-originated organoid

www.nature.com/articles/s41...
Modeling of T cell-mediated autoimmune pituitary disease using human induced pluripotent stem cell-originated organoid - Nature Communications
Cytotoxic T lymphocytes (CTL) have been implicated in anti-PIT-1 hypophysitis, an autoimmune disease, but direct evidence is lacking. Here the authors use induced pluripotent stem cells to generate pi...
www.nature.com
August 27, 2025 at 9:24 PM
Another key factor is the development of autoimmune diseases (such as autoimmune hypophysitis) as a consequence of infection. Autoimmune hypophysitis causes a cortisol deficit, which leads to increased immune hyperactivity and consequently aggravates immune exhaustion.
December 4, 2024 at 1:55 PM
❌ The use of ICIs in patients with autoimmune diseases increases the risk of aggravating autoimmunity, especially increasing the risk of autoimmune hypophysitis.
December 4, 2024 at 1:55 PM
RRIDs were included in this in Hormones paper. RRIDs improve reproducibility in scientific research. #RRID #OpenResearch #reproducibility
Transient adrenocorticotropic hormone elevation with a disproportionate cortisol response prior to the onset of immune checkpoint inhibitor-related hypophysitis - Hormones
Read the full paper: Transient adrenocorticotropic hormone elevation with a disproportionate cortisol response prior to the onset of immune checkpoint inhibitor-related hypophysitis
doi.org
April 1, 2026 at 7:01 AM
💡 𝐈𝐦𝐩𝐨𝐫𝐭𝐚𝐧𝐜𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐬𝐚𝐥𝐢𝐯𝐚 𝐜𝐨𝐫𝐭𝐢𝐬𝐨𝐥 𝐜𝐮𝐫𝐯𝐞 𝐟𝐨𝐫 𝐋𝐨𝐧𝐠 𝐂𝐎𝐕𝐈𝐃 𝐚𝐧𝐝 𝐌𝐄/𝐂𝐅𝐒..

📊 𝐖𝐡𝐲 𝐩𝐞𝐫𝐟𝐨𝐫𝐦 𝐢𝐭?
The blood cortisol tests I had done in the morning (at 11 o'clock) always came out within normal ranges, even after the EBV-caused hypophysitis I had at the onset of my disease in 2013

#LongCOVID #MECFS #Health
November 15, 2024 at 1:38 PM
🧠 In der aktuellen Notfall+Rettungsmedizin Ausgabe wird ein interessanter Fall präsentiert: Notfall-MRT bei Hyponatriämie? – Immunvermittelte Hypophysitis.

Sandra Kleinfeld, Christiane Lange, Ullrich Graeven und Sebastian Bergrath berichten über den seltenen Kasus.
May 26, 2026 at 2:39 PM
Read interesting case history: 73-year-old man presenting with hypotension of 95/73 mm Hg, reduced left ventricular ejection fraction 30%. Severe adrenal insufficiency and depressed HPA via idiopathic hypophysitis. Resolved with hydrocortisone.
doi: 10.1001/jamainternmed.2025.6324
December 2, 2025 at 10:17 PM