True health infuses positive energy in the mind, body and spirit; it is a main focus in my life.
-Maximillian Degenerez
PNA Spotlight: Dr. Bernard Bendok
In July, the PNA Spotlight focuses on Dr. Bernard Bendok, a neurosurgeon at the Mayo Clinic in Scottsdale, Arizona. Dr. Bendok earned his M.D. at Northwestern University, Feinberg School of Medicine. He also was an intern and a Resident there. He board certified in Neurological Surgery and specialized in minimally invasive neurosurgery. His PNA directory listing is here. He was kind enough to answer a series of questions from the PNA. His answers follow:
PNA Medical Corner: The Endoscopic Endonasal Transtuberculum Approach
This month the PNA Medical Corner features an article co-authored by Juan C Fernandez-Miranda at Stanford University, a member of the PNA. The article looks at what is necessary for a successful resection of a pediatric tuberoinfundibular craniopharyngioma using the endoscopic endonasal transtuberculum approach.
Featured News and Updates
News Articles November 2025
News Articles November 2025
Case report: from pituitary tumor to metastatic cancer
An article on Cureus.com looks at the case of a 35-year-old man with a lactrotroph pituitary adenoma that progressed to a metastatic pituitary carcinoma. In this rare case, the cancer is “resistant to surgery, radiation, and medical treatments.“ Read more: https://www.cureus.com/articles/348490-transformation-of-lactotroph-pituitary-adenoma-to-metastatic-pituitary-carcinoma-a-case-report#!/
Patient story: Musician Lou Gramm on his battle with a pituitary tumor
An article on blabbermouth.net features the pituitary story of musician Lou Gramm of the group “Foreigner”, who had surgery for a craniopharyngioma in 1997 after suffering headaches and memory loss. Read more: https://blabbermouth.net/news/lou-gramm-says-he-couldnt-remember-the-words-to-foreigners-classic-songs-shortly-after-his-brain-surgery
Researchers use artificial intelligence to screen for childhood hormone deficiency
An article in EMJ Reviews looks at a study on whether artificial intelligence can predict growth hormone deficiency in children of short stature. The machine learning model examines MRI scans of the pituitary and has shown good results. In the future, this could lead doctors to order fewer invasive growth hormone stimulation tests for children. Read more: https://www.emjreviews.com/en-us/amj/radiology/news/mri-radiomics-model-predicts-childhood-hormone-deficiency/
Patient on off-label cabergoline develops impulse control disorder as tumor grows
An study in Cureus.com examines the case of a 19-year-old man with a prolactinoma who was given off-label cabergoline at three times the normal dose for ten years. He developed an impulse control disorder and a spending and gambling problem, and was lost to follow-up. Radiosurgery was rejected, as the patient was deemed unable to comply with the necessary follow-up regime. It was later discovered that his tumor was resistant to cabergoline and had grown and extended into the cavernous sinus, making it inoperable. Read more: https://www.cureus.com/articles/416467-giant-prolactinoma-resistant-to-high-dose-cabergoline-in-a-young-male-lost-to-follow-up#!/
The FDA has approved NGENLA (somatrogon-ghla)
The FDA has approved NGENLA (somatrogon-ghla), a once-weekly, human growth hormone analog indicated for treatment of pediatric patients aged three years and older who have growth failure due to an inadequate secretion of endogenous growth hormone.
Research Articles
November 2025 Research Articles
Pituitary tumors
Zhang B, Zhang J, Li Z, Sheng H, Li H, Lu Y, Liu X, Xu Z, Huang Y, Zhu C, Wen Y, He X, Zhang L.Neuro Oncol. 2025 Oct 24:noaf249. doi: 10.1093/neuonc/noaf249. Online ahead of print.
Patel V, Aboud O, Barakat A.Int J Mol Sci. 2025 Oct 16;26(20):10065. doi: 10.3390/ijms262010065.
Pituitary surgery
Global Growth and Distribution of CyberKnife Stereotactic Radiosurgery: A Bibliometric Analysis.
Annagiri S, Hori YS, Persad ARL, Ustrzynski L, Emrich SC, Tayag A, Park DJ, Adler JR, Chang SD.Neurosurg Pract. 2025 Jul 10;6(3):e000150. doi: 10.1227/neuprac.0000000000000150. eCollection 2025 Sep.
Imaging
Korbecki A, Łukasiewicz M, Kacała A, Sobański M, Zdanowicz-Ratajczyk A, Szałata K, Dorochowicz M, Korbecka J, Trybek G, Zimny A, Bladowska J.J Clin Med. 2025 Oct 11;14(20):7168. doi: 10.3390/jcm14207168.
Yonar A.Sci Rep. 2025 Oct 28;15(1):37543. doi: 10.1038/s41598-025-23820-3.
Acromegaly
Sun Y, Lu D, Gao J.Drug Discov Ther. 2025 Oct 29. doi: 10.5582/ddt.2025.01109. Online ahead of print.
Stanciu M, Cătană A, Ristea RP, Tanasescu D, Carsote M, Popa FL, Lebădă IC.Diagnostics (Basel). 2025 Oct 17;15(20):2623. doi: 10.3390/diagnostics15202623.
Cushing’s
Three Cases of Ectopic, Cyclic Cushing Syndrome: A New Square Wave Variant.
Martinez-Gil M, Tshimbombu TN, Li Yi Ang Y, Rodriguez MC, Yuen KCJ.JCEM Case Rep. 2025 Oct 28;3(12):luaf176. doi: 10.1210/jcemcr/luaf176. eCollection 2025 Dec.
Selective Hippocampal Subfield Atrophy Mediates Cognitive Decline in Cushing’s Disease.
Feng Z, Zhou T, Yan X, He K, Liu H, Yu X, Lu R, Ma Z, Yu X, Zhang Y.Brain Behav. 2025 Nov;15(11):e71030. doi: 10.1002/brb3.71030.
Hormonal health
Pellegrini B, Cantaluppi V, Aimaretti G, Ferraresso M, Romagnoli J, Silvestre C, Comai G, Maggiore U, Leone F, Greco R, Maggiolini M, Provenzano M, Zaza G; Joint Committee of the Italian Society of Organ Transplantation and the Italian Society of Nephrology.J Endocrinol Invest. 2025 Oct 29. doi: 10.1007/s40618-025-02741-y. Online ahead of print.
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