As an American, you have a right to good health care that is effective, accessible, and affordable, that serves you from infancy through old age, that allows you to go to practitioners and facilities of your choosing, and that offers a broad range of therapeutic options.

-Andrew Weil

 

PNA Spotlight: Dr. John Boockvar

In June the PNA Spotlight focuses on Dr. John Boockvar, a neurosurgeon in New York City. Dr. Boockvar has many titles; among them, vice chair of the Department of Neurosurgery and director of the Brain Tumor and Pituitary/Neuroendocrine Center at Lenox Hill Hospital; investigator in the Laboratory for Brain Tumor Biology at the Feinstein Institutes for Medical Research; and professor of Neurosurgery and Otolaryngology/Head and Neck Surgery at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. He also serves as an adjunct professor at Cold Spring Harbor Laboratory and is head of experimental therapeutics for Northwell Health. Dr. Boockvar received a BA from the University of Pennsylvania and and MD from SUNY Brooklyn-Downstate Medical Center. He did his surgical internship and neurosurgical residency at the Hospital of the University of Pennsylvania. Dr. Boockvar did his NIH-supported postdoctoral research training in neuro-oncology at the University of Pennsylvania Cancer Center. He was kind enough to answer a series of questions from the PNA. His answers follow:

PNA Medical Corner: PitNETs

This month the PNA Medical Corner showcases a study co-authored by longtime PNA member Dr. Sylvia Asa on PitNets that co-express PIT1 and SF1. These types of tumors that express both are rare. Read more here:

https://pubmed.ncbi.nlm.nih.gov/37268858/

Abstract

PitNETs are usually restricted in their cytodifferentiation to only one of 3 lineages dictated by expression of the pituitary transcription factors (TFs) PIT1, TPIT, or SF1. Tumors that show lineage infidelity and express multiple TFs are rare. We searched the pathology files of 4 institutions for PitNETs with coexpression of PIT1 and SF1. We identified 38 tumors in 21 women and 17 men, average age 53 (range 21-79) years. They represented 1.3 to 2.5% of PitNETs at each center. Acromegaly was the presentation in 26 patients; 2 had central hyperthyroidism associated with growth hormone (GH) excess and one had significantly elevated prolactin (PRL). The remainder had mass lesions with visual deficits, hypopituitarism, and/or headaches. Tumor size ranged from 0.9 to 5 cm; all 7 lesions smaller than 1 cm were associated with acromegaly. Larger lesions frequently invaded the cavernous sinuses.

Featured News and Updates

News Articles August 2026

Secretary of Defense concerned about low testosterone in the military

Secretary of Defense Pete Hegseth is mandating testing of male troops over age 30 for low testosterone and will offer testosterone replacement therapy. Many endocrinologists say this approach is problematic. Read more: https://arstechnica.com/health/2026/07/hegseth-wants-a-high-t-military-doctors-call-it-a-clinical-minefield/

The Endocrine Society issue statement in the wake of Hegseth’s announcement:

https://www.endocrine.org/news-and-advocacy/news-room/2026/statement-on-testosterone-replacement-therapy

Pituitary story: Lionel Messi

Soccer mega-star Lionel Messi was diagnosed with growth hormone deficiency as a child. Read more: https://www.msn.com/en-in/health/other/lionel-messi-overcame-growth-hormone-deficiency-as-a-child-a-condition-that-almost-derailed-his-football-dream/ar-AA280JJc

Vision issues in acromegaly

PNA member Dr. Maria Fleseriu is featured in an article in EverydayHealth.com about how acromegaly can affect a patient’s eyesight. Read more: https://www.everydayhealth.com/hormones-metabolic-disorders/how-acromegaly-can-affect-your-eyesight/

Delayed diagnosis of Cushing’s in Japanese children

An article in Cushing’s Disease News looks at a study that found Japanese children often face delays in diagnosis of Cushing’s disease, but many are successfully treated with surgery. Read more: https://cushingsdiseasenews.com/news/japanese-children-face-long-delays-cushings-disease-diagnosis/

Pituitary story: Idaho teen battles germinoma near pituitary gland

Delayed puberty and growth, combined with diabetes insipidus, led doctors to diagnose a 16-year-old boy from Idaho with a germ cell tumor near his pituitary gland. Read more: https://www.fredhutch.org/en/news/blog/2026/07/college-bound-16-year-old-didnt-let-germinoma-get-him-down.html

Pituitary surgery story: Transsphenoidal surgery at Walter Reed

A story in the Times of India highlights the work of an Indian American pituitary surgeon at Walter Reed National Military Medical Center in Bethesda, Maryland: Major Jagatkumar “J.” Patel, and his colleague Army neurosurgeon Lt. Col. Charles Miller.  Read more: https://timesofindia.indiatimes.com/health/indian-american-army-surgeon-removes-golf-ball-sized-brain-tumour-through-a-patients-nose-avoiding-open-skull-surgery/amp_articleshow/132781973.cms

Experts play down the idea of “male menopause”

An article in the Kansas City Star explains that men do not experience a sharp drop-off in hormones in the same way women do; the process is more gradual. Read more: https://www.kansascity.com/living/article316673842.html

The same reporter looks at testosterone replacement therapy in an article in the Miami Herald: https://www.miamiherald.com/living/article316675898.html

Research Articles

Research Articles August 2026

Pituitary tumors

Predicting hormonal deterioration following transsphenoidal surgery for non-functioning pituitary adenomas: A systematic review and meta-analysis.

Ameen D, ElSabban Y, Kalaitzoglou D, Shapey J, Barazi S, Thomas N, Aylwin S, Maratos E.Endocrine. 2026 Aug 1;91(1):243. doi: 10.1007/s12020-026-04712-6.

 

Effect of sellar and parasellar brain tumors on retinal thickness and visual fields: A cross-sectional comparative study.

Kasireddy HD, Sahu V, Sharma A, Kumar A, Shrivastava S.Indian J Ophthalmol. 2026 Aug 1;74(8):1185-1190. doi: 10.4103/IJO.IJO_215_26. Epub 2026 Jul 31.


Case report of two growth hormone-secreting invasive pituitary adenomas and literature review.

Zhou J, Wen J, Leng H, Yi J.Arch Med Sci. 2026 Jun 23;22(3):1926-1931. doi: 10.5114/aoms/224312. eCollection 2026.


Statistical Geometric Morphometric Shape Analysis of Ventricular Shape Changes in Giant Pituitary Adenomas Invading the Third Ventricle.

Altunyuva O, Balcin N, Ocakoglu G, Taskapilioglu MO, Yilmazlar S.Turk Neurosurg. 2026;36(4):509-516. doi: 10.5137/1019-5149.JTN.49331-25.2.

 

Personalized prediction of local control after stereotactic radiosurgery for craniopharyngioma: a multicenter machine learning survival model.

Reyes JS, Hadjipanayis CG, Bernstein K, Speckter H, Gonzalez I, Chytka T, Liscak R, Bowden GN, Sumi T, Narita K, Kano H, Martínez-Moreno N, Martínez-Álvarez R, Picozzi P, Franzini A, Tripathi M, Rai A, Kumar N, Douri K, Mathieu D, Dono A, Amezquita-Contreras C, Blanco AI, Esquenazi Y, Tos SM, Mantziaris G, Peker S, Samanci Y, Duzkalir AH, Meng Y, Sheehan JP, Kondziolka D, Lunsford LD, Niranjan A.J Neurooncol. 2026 Jul 31;179(1):22. doi: 10.1007/s11060-026-05736-8.

Editor’s note: Dr. Sheehan is a member of the PNA.

 

Cushing’s

Annexin A1 as a diagnostic biomarker for cyclic Cushing disease.

Rao Z, Wu L, Jiang L, Su T, Cao Y, Lin S, He X, Ye Y, Ning G, Wang W, Zhang C.iScience. 2026 Jul 22;29(8):116907. doi: 10.1016/j.isci.2026.116907. eCollection 2026 Aug 21.

 

MRI predictive value for adenoma detection in Cushing’s disease and reader dependence: a multi-observer study.

Constanthin PE, Ferrière A, Sanchez-Gallardo F, Nunes ML, Berge J, Engelhardt J.J Neurosurg. 2026 Jul 31:1-9. doi: 10.3171/2026.2.JNS252331. Online ahead of print.

 


Baseline biochemical evaluation for etiologic differentiation in ACTH-dependent Cushing’s syndrome: machine learning and composite score analysis in a multicenter cohort of 566 patients.

Detomas M, Prada Salcedo JP, Altieri B, Stüfchen I, Nasi-Kordhishti I, Wolfsberger S, Losa M, Quinkler M, Kimpel O, Vila G, Honegger JB, Rubinstein G, Fassnacht M, Deutschbein T.Eur J Endocrinol. 2026 Jul 31:lvag141. doi: 10.1093/ejendo/lvag141. Online ahead of print.

 

Acromegaly

 

Assessment of nurses’ knowledge and awareness of acromegaly in a high-volume tertiary center: a cross-sectional study.

Genc B, Polat SB, Koc A, Ersoy R.Pituitary. 2026 Jul 31;29(4):136. doi: 10.1007/s11102-026-01737-y.

 

Hormonal health

 

Pituitary Apoplexy Without Chiasmal Compression Presenting With Radiographic Oculomotor Nerve Compression in a Prolactinoma: A Case Report.

Holz EA, Imran M, Reyes N, Izquierdo-Pretel G.Cureus. 2026 Jun 30;18(6):e111830. doi: 10.7759/cureus.111830. eCollection 2026 Jun.

 

 

Progressive Cerebellar Dysfunction, Pituitary Insufficiency, and Severe Skeletal Fragility in Adult Survivorship of Childhood Multisystem Langerhans Cell Histiocytosis: A Case Report.

Alnahar S, Senjab A, Gharib S, Gharib Z, Hadid L.Clin Case Rep. 2026 Jul 29;14(8):e73261. doi: 10.1002/ccr3.73261. eCollection 2026 Aug.


A Novel LHX3 Variant Associated With Combined Pituitary Hormone Deficiency in an Indian Kindred.

Palaniappan S, Sridhar S, Thasarathan S, Shanmugam D, Dutta P.Cureus. 2026 Jun 29;18(6):e111778. doi: 10.7759/cureus.111778. eCollection 2026 Jun.

 

 

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