“When health is absent, wisdom cannot reveal itself, art cannot become manifest, strength cannot be exerted, wealth is useless, and reason is powerless.” – Herophiles

PNA Spotlight: Dr. Nelson Oyesiku

This month the PNA Spotlight focuses on Dr. Nelson Oyesiku, systems neuroscience chief of Piedmont Healthcare in Atlanta, Georgia. He was formerly professor and chair of the Department of Neurological Surgery and professor of medicine (endocrinology) at the University of North Carolina, Chapel Hill. He earned his Bachelor of Medicine and Bachelor of Surgery at the University of Ibadan in Nigeria. He completed an MsC at the University of London and earned his PhD from Emory University, where he spent 35 years on staff.  Dr. Oyesiku was kind enough to answer questions from the PNA. His answers follow.

Please tell us the main focus of your practice

I’ve been primarily a pituitary surgeon for more than 30 years, so my main interest is in neuroendocrinology; including surgery and medical conditions of the pituitary gland.

Tell us about your professional journey

 I spent 35 years at Emory University. I left there in 2021 to take a position as chair of neurosurgery at University of North Carolina in Chapel Hill.  Then in April of this year, I joined Piedmont Healthcare Systems in Atlanta, Georgia, as a systems neuroscience chief.

What should people know about Piedmont’s approach?

I am now head of the neurosciences service line for all of Piedmont Healthcare, which includes oversight over neurosurgery, neurology, and psychiatry across all the Piedmont entities across the state of Georgia, which includes the hospitals, the clinics, and the practices of the providers in the neurosciences service line. That includes the pituitary and skull-based neuroendocrine lines as well. I’m also a practicing neurosurgeon.

What are your goals in this new position?

My goals are to develop, expand, and improve our neurosciences service line in terms of what we do in clinical delivery of care, quality, safety, and advancement of the field delivering patient-centered care.

What led you to choose this field?

When I first decided to go into medicine, I was influenced by a medical drama series that was on around that time called Ben Casey. It was a medical drama series whose protagonist was a resident in neurosurgery at San Francisco General. The series charted his course of training and was very popular at the time. It was one of the earliest medical drama series, long before Doogie Howser, Dr. Kildare, St. Elsewhere, or Grey’s Anatomy.

Read More Here

PNA Medical Corner: Acromegaly treatment

This month the PNA Medical Corner features a study co-authored by PNA member Dr. Maria Fleseriu. The study finds that the combination of Pasireotide-LAR and pegvisomant are effective in treating mammosomatotroph adenomas.

Pituitary  2026 Sep 23;29(5):159.

doi: 10.1007/s11102-026-01750-1.

Pasireotide-LAR and pegvisomant combination in resistant acromegaly: a case series of predominantly mammosomatotroph adenomas

Edward Mignone ^1 2 3, Elena V Varlamov ^4 5 6, Rinki Pandya ⁶, Melanie Hakar ⁷, Maria Fleseriu ^4 5 6

• PMID: 42778805
• PMCID: PMC13601152
• DOI: 10.1007/s11102-026-01750-1

Abstract

Purpose: Long-term real-world data on concurrent pasireotide-LAR (PAS) and pegvisomant (PEGV) use in treatment-resistant acromegaly remain limited, especially for mammosomatotroph adenomas in younger adults. We report outcomes of six patients treated with this combination at a single tertiary pituitary center.

Methods: IRB-approved retrospective case series. Baseline and follow-up biochemical, radiological, histopathological, treatment and safety outcomes were captured.

Results: Six patients (5 females, 1 male; age 15 to 44 years) with somatotroph (n = 2) or mammosomatotroph (n = 4) adenomas, all macroadenomas, received PAS (20 to 60 mg every 28 days) plus PEGV (60 to 280 mg/week) over a median of 3.3 years (range 0.5 to 5.9) after lack of disease control post-surgery despite multiple lines of medical therapy. All six maintained tumor stability and achieved normal IGF-1. One had biochemical escape after 9 months of biochemical control requiring a 2nd surgery and radiosurgery. One patient discontinued PEGV after 3 years due to injection site pain, 3 patients developed hyperglycemia in the pre-diabetes range; no hepatotoxicity, acute symptomatic biliary disease, or arrhythmias occurred.

Conclusions: In this series of predominantly mammosomatotroph adenomas in younger adults, combination PAS plus PEGV offers potential durable biochemical control, tumor stability and PEGV dose reduction in treatment-resistant acromegaly. Glucose monitoring during treatment is essential as concomitant use of PEGV does not appear to mitigate PAS-induced glycemic deterioration. Larger prospective studies are needed to better define predictors of response.

Keywords: Acromegaly; Mammosommatotroph adenomas; Pasireotide; Pegvisomant; Treatment-resistant.

Count on your Xeris CareConnection™ Team for unparalleled Cushing’s Support

Cushing’s can be challenging, but there is support so patients can feel like themselves again. The main goal of treating Cushing’s is to get cortisol levels back to normal. This Pituitary Awareness Month, Xeris Pharmaceuticals® is highlighting the importance of one-on-one support for patients living with Cushing’s Syndrome and support for HCPs treating Cushing’s Syndrome.

Sign up to get dedicated support:

Patients: Sign up for support | Recorlev® (levoketoconazole)

HCP’s: Connect with Xeris support | RECORLEV® (levoketoconazole)

Have more questions? Call for more support at 1-844-444-RCLV (7258)

“Your body holds deep wisdom. Trust in it. Learn from it. Nourish it. Watch your life transform and be healthy.”

– Bella Bleue 

PNA Spotlight: Dr. Yuval Eisenberg

This month the PNA Spotlight shines on Dr. Yuval Eisenberg.  Dr. Eisenberg graduated from Rush Medical College at Rush University Medical Center in 2009. He works in Chicago, IL and two other locations and specializes in internal medicine as well as endocrinology, diabetes & metabolism.    Dr. Eisenberg is also affiliated with the University of Illinois Hospital Health & Science Center.  He was kind enough to answer some of our questions:

What inspired you to choose your career path?

My career path was guided by my interaction with patients and my mentors. The highlight of my medical school training was helping to diagnose a young man suffering from multiple endocrine neoplasia type 1 (MEN1), a rare genetic disorder causing multiple tumors, including a pituitary adenoma. Listening to his concerns and thinking outside the box, I helped provide him with the correct diagnosis and treatment plan – and started my journey into endocrinology. I have been fortunate to work with excellent clinician-educators in my career. Learning about and observing the care of patients with endocrine-related problems was fascinating and rewarding. The farther I got in my training, the more I realized that endocrinology was my passion and that patients with pituitary disorders would be my sub-focus. Patients with pituitary disease are a unique population who are in need of education, support and reassurance at diagnosis – and they often require long-term follow-up. This allows for time to develop a bond of trust; an aspect of medical practice I thoroughly enjoy.

Read More Here

Safeguarding the nose during pituitary tumor surgery

Pituitary tumors are typically removed through the nose during endoscopic transnasal transsphenoidal surgery. Although minimally invasive, that approach requires expertise to minimize surgical trauma to the nose. Fortunately, surgeons are using new techniques that help safeguard the nose and maximize patients’ quality of life after surgery.

“The tendency now is to be less invasive in the approach through the nose,” explains Dr. Carlos D. Pinheiro Neto, a Mayo Clinic ENT/head and neck surgeon. “A very aggressive approach can cause chronic nasal crusting and infections, scabbing, decreased sense of smell and taste, and changes in the nose’s appearance.”

In endoscopic transnasal transsphenoidal surgery, a small surgical camera and surgical instruments are placed through the nostrils to access the tumor through the sinuses. Mayo Clinic was among the first institutions to extensively research the approach. As initially developed, the procedure involved extensive nasal resection.

“The idea was to create a maximum opening of the sinuses to allow neurosurgeons to reach and remove the tumor from the skull base,” Dr. Pinheiro Neto says. “The nasal physiology and sinus symptoms after the surgery were not a priority — the nose was just a corridor to the tumor.”

Now, Dr. Pinheiro Neto is pioneering surgical techniques that minimize resection of the nasal and sinus structures. One involves leaving intact the middle turbinate, which plays important roles in nasal airflow, warming and filtering air to the lungs, and smelling. Another is using a nasal-floor graft to provide a seal between the nose and brain after tumor removal. The standard procedure when cerebrospinal fluid leaks during surgery involves a nasal septal flap created from the septum — the tissue that separates the nostrils’ two airways.

“Nasal graft is much better for patients. It avoids the exposure of the nasal septum cartilage, so there is less crusting and faster healing,” Dr. Pinheiro-Neto says. “Nasal septal flaps can also cause a structural collapse in the nasal bridge and increase the risk of septal perforations. Since changing our paradigm from nasal septal flap for pituitary surgery, our leak rate is 0.1%.”

The new techniques are based on research conducted in Mayo Clinic’s anatomy laboratory. Those lessons are translated to the operating room, where ENT/head and neck surgeons routinely work alongside neurosurgeons to remove pituitary tumors.

“That research has allowed us to achieve the same level of tumor resection and treatment outcomes, but with fewer complications,” Dr. Pinheiro-Nato says. “With time and experience, we have realized it’s possible to preserve most of the nose and still get good space in the back of the sinus for tumor removal.

“This is about improving patients’ quality of life,” Dr. Pinheiro-Neto says. “They can have a nasal procedure but after a few weeks of healing, the nose and nasal physiology, and the sinuses, are as good as ever before.”

Stanford Hosts Pituitary Patient Education Day

Stanford University invites the public to their free pituitary patient education day, to be held both in-person and via zoom on Saturday November 9th, 2024. The event will run from 8am-5pm and will take place in the Assembly Hall at Stanford Hospital.

The course co-directors include neurosurgeon Juan C. Fernandez-Miranda, MD (a longtime member of the PNA), and endocrinologist Julia Chang, MD. Topics to be discussed include the function of the pituitary gland, endonasal endoscopic surgery, cavernous sinus surgery, radiotherapy, Cushing’s, acromegaly, prolactinoma and more.

Click To Sign Up Here

Count on your Xeris CareConnection™ Team for unparalleled Cushing’s Support

Cushing’s can be challenging, but there is support so patients can feel like themselves again. The main goal of treating Cushing’s is to get cortisol levels back to normal. This Pituitary Awareness Month, Xeris Pharmaceuticals® is highlighting the importance of one-on-one support for patients living with Cushing’s Syndrome and support for HCPs treating Cushing’s Syndrome.

Sign up to get dedicated support:

Patients: Sign up for support | Recorlev® (levoketoconazole)

HCP’s: Connect with Xeris support | RECORLEV® (levoketoconazole)

Have more questions? Call for more support at 1-844-444-RCLV (7258)

This month the PNA Spotlight focuses on endocrinologist Dr. Leena Shahla, director of the Duke Pituitary Center, part of Duke Health in Durham, North Carolina.  The program is listed by the PNA as a center of pituitary excellence. Dr. Shahla graduated medical school at Al-Baath University (in Homs, Syria), did her residency in internal medicine at St. Joseph’s at New York Medical College, and completed a fellowship in endocrinology at the University of Massachusetts Medical School. Her pituitary focus has grown significantly over the years.   She initiated the pituitary tumor board at the University of Florida, Jacksonville, and later built the pituitary clinic at the University of Arizona, Phoenix. She arrived at Duke this past July.  Dr. Shahla was kind enough to answer a few questions from the PNA. Below is the conversation.

Please tell us about your work at Duke.

At Duke, I am the neuroendocrinologist and medical director of Duke Pituitary Center. Our multidisciplinary team includes specialists in neurosurgery, neuro-ophthalmology, ENTs, neuro-oncology, and neuro-radiology.  We run a multi-disciplinary clinic. When patients visit for evaluation, they often start with visual field testing, followed by appointments with me and one of the neurosurgeons, all in one place. We all collaborate closely behind the scenes to make the best plan for each patient.

What inspired you to choose this career path?

My interest in hormones and their role in regulating various physiological systems led me to specialize in endocrinology. And then, as I realized the significant impact of the pituitary on the endocrine system, I found the challenge of diagnosing and treating pituitary conditions fascinating, much like solving a complex puzzle. So ultimately, that inspired me to specialize in pituitary disorders.

What is the primary focus of your work or research?

We’re working on a study on the link between hypogonadism and prolactinoma. We are also going to be looking into early diagnosis of Cushing’s and acromegaly.

How has endocrinology evolved since you got into it, and where do you think it’s going?

Medicine today is more advanced than ever.  Especially in my specialty, there have been advancements in pituitary-focused diagnostic tests and new treatments continue to emerge. This progress is especially beneficial for complex cases that previously had limited treatment options. The field is moving forward with studies and clinical trials underway. Cushing’s and acromegaly are rare diseases and often leave patients suffering for years before diagnosis. However, with greater public awareness and improved testing, patients are being diagnosed earlier.

What should patients know about endocrinology? What needs more awareness?

Cushing’s Syndrome and acromegaly deserve more awareness, as many patients go undiagnosed for long periods. Not all cases present with obvious symptoms making it crucial for primary care physicians and other providers to recognize early signs. When patients are diagnosed in advanced stages, treatment becomes more challenging. Raising awareness can guide physicians to screen for Cushing’s syndrome and acromegaly or refer patients to endocrinology. This proactive approach can help us identify, diagnose, and treat patients sooner.

What are some of the signs that doctors and patients should be looking for, for acromegaly and Cushing’s?

Both patients and providers should be aware of certain signs and symptoms, although they can be subtle or develop gradually.

For Cushing’s, signs could be unexplained weight gain, easy bruising, muscle weakness, mood changes (anxiety, depression, irritability), uncontrolled diabetes, or hypertension.

For acromegaly, some of signs are facial changes, hand and feet growth (increased ring or shoe size), joint pain and swelling, tingling in hands, jaw changes or pain, and widening of spaces between the teeth.

Early detection of these signs combined with diagnostic tests can help lead to timely intervention and management

What would you like to convey about yourself to your patients?

I believe that the doctor-patient relationship is built on communication, empathy, and trust. I am thorough in my approach, and when I meet patients, especially for the first time, I prioritize listening to their concerns, making sure I answer their questions and explain their conditions clearly so they understand. And I involve them actively in the decision-making process.

Empathy is essential, especially during the diagnosis and early stages of treatment before patients start feeling better. They need support, hand-holding, and understanding because they are often struggling physically, mentally, and emotionally. It is important to listen to their concerns patiently and guide them without getting frustrated. While we may not be able to cure everything, we can keep the disease very well-controlled, allowing them to feel better and supported.

What made you want to get involved with the PNA?

I always wanted to be involved with the PNA because pituitary disorders are not that common, and this group provides invaluable support to patients. My goal is to contribute as much as possible to help patients and community providers recognize the disease early.  Patients must be referred to centers with the right resources for diagnosis and treatment. At the end of the day, we all care deeply about our patients’ well-being.

“Your body holds deep wisdom. Trust in it. Learn from it. Nourish it. Watch your life transform and be healthy.”

– Bella Bleue 

PNA Spotlight: Dr. Yuval Eisenberg

This month the PNA Spotlight shines on Dr. Yuval Eisenberg.  Dr. Eisenberg graduated from Rush Medical College at Rush University Medical Center in 2009. He works in Chicago, IL and two other locations and specializes in internal medicine as well as endocrinology, diabetes & metabolism. Dr. Eisenberg is also affiliated with the University of Illinois Hospital Health & Science Center.  He was kind enough to answer some of our questions:

What inspired you to choose your career path?

My career path was guided by my interaction with patients and my mentors. The highlight of my medical school training was helping to diagnose a young man suffering from multiple endocrine neoplasia type 1 (MEN1), a rare genetic disorder causing multiple tumors, including a pituitary adenoma. Listening to his concerns and thinking outside the box, I helped provide him with the correct diagnosis and treatment plan – and started my journey into endocrinology. I have been fortunate to work with excellent clinician-educators in my career. Learning about and observing the care of patients with endocrine-related problems was fascinating and rewarding. The farther I got in my training, the more I realized that endocrinology was my passion and that patients with pituitary disorders would be my sub-focus. Patients with pituitary disease are a unique population who are in need of education, support and reassurance at diagnosis – and they often require long-term follow-up. This allows for time to develop a bond of trust; an aspect of medical practice I thoroughly enjoy.

Read More Here

Safeguarding the nose during pituitary tumor surgery

Pituitary tumors are typically removed through the nose during endoscopic transnasal transsphenoidal surgery. Although minimally invasive, that approach requires expertise to minimize surgical trauma to the nose. Fortunately, surgeons are using new techniques that help safeguard the nose and maximize patients’ quality of life after surgery.

“The tendency now is to be less invasive in the approach through the nose,” explains Dr. Carlos D. Pinheiro Neto, a Mayo Clinic ENT/head and neck surgeon. “A very aggressive approach can cause chronic nasal crusting and infections, scabbing, decreased sense of smell and taste, and changes in the nose’s appearance.”

In endoscopic transnasal transsphenoidal surgery, a small surgical camera and surgical instruments are placed through the nostrils to access the tumor through the sinuses. Mayo Clinic was among the first institutions to extensively research the approach. As initially developed, the procedure involved extensive nasal resection.

“The idea was to create a maximum opening of the sinuses to allow neurosurgeons to reach and remove the tumor from the skull base,” Dr. Pinheiro Neto says. “The nasal physiology and sinus symptoms after the surgery were not a priority — the nose was just a corridor to the tumor.”

Now, Dr. Pinheiro Neto is pioneering surgical techniques that minimize resection of the nasal and sinus structures. One involves leaving intact the middle turbinate, which plays important roles in nasal airflow, warming and filtering air to the lungs, and smelling. Another is using a nasal-floor graft to provide a seal between the nose and brain after tumor removal. The standard procedure when cerebrospinal fluid leaks during surgery involves a nasal septal flap created from the septum — the tissue that separates the nostrils’ two airways.

“Nasal graft is much better for patients. It avoids the exposure of the nasal septum cartilage, so there is less crusting and faster healing,” Dr. Pinheiro-Neto says. “Nasal septal flaps can also cause a structural collapse in the nasal bridge and increase the risk of septal perforations. Since changing our paradigm from nasal septal flap for pituitary surgery, our leak rate is 0.1%.”

The new techniques are based on research conducted in Mayo Clinic’s anatomy laboratory. Those lessons are translated to the operating room, where ENT/head and neck surgeons routinely work alongside neurosurgeons to remove pituitary tumors.

“That research has allowed us to achieve the same level of tumor resection and treatment outcomes, but with fewer complications,” Dr. Pinheiro-Nato says. “With time and experience, we have realized it’s possible to preserve most of the nose and still get good space in the back of the sinus for tumor removal.

“This is about improving patients’ quality of life,” Dr. Pinheiro-Neto says. “They can have a nasal procedure but after a few weeks of healing, the nose and nasal physiology, and the sinuses, are as good as ever before.”

Count on your Xeris CareConnection™ Team for unparalleled Cushing’s Support

Cushing’s can be challenging, but there is support so patients can feel like themselves again. The main goal of treating Cushing’s is to get cortisol levels back to normal. This Pituitary Awareness Month, Xeris Pharmaceuticals® is highlighting the importance of one-on-one support for patients living with Cushing’s Syndrome and support for HCPs treating Cushing’s Syndrome.

Sign up to get dedicated support:

Patients: Sign up for support | Recorlev® (levoketoconazole)

HCP’s: Connect with Xeris support | RECORLEV® (levoketoconazole)

Have more questions? Call for more support at 1-844-444-RCLV (7258)

This month the PNA Spotlight shines on Dr. Yuval Eisenberg.  Dr. Eisenberg graduated from Rush Medical College at Rush University Medical Center in 2009. He works in Chicago, IL and two other locations and specializes in internal medicine as well as endocrinology, diabetes & metabolism. Dr. Eisenberg is also affiliated with the University of Illinois Hospital Health & Science Center.  He was kind enough to answer some of our questions:

 What inspired you to choose your career path?

My career path was guided by my interaction with patients and by my mentors. The highlight of my medical school training was helping to diagnose a young man suffering from multiple endocrine neoplasia type 1 (MEN1), a rare genetic disorder causing multiple tumors, including a pituitary adenoma. Listening to his concerns and thinking outside the box, I helped provide him with the correct diagnosis and treatment plan – and started my journey into endocrinology. I have been fortunate to work with excellent clinician-educators in my career. Learning about and observing the care of patients with endocrine-related problems was fascinating and rewarding. The farther I got in my training, the more I realized that endocrinology was my passion and that patients with pituitary disorders would be my sub-focus. Patients with pituitary disease are a unique population who are in need of education, support and reassurance at diagnosis – and they often require long-term follow-up. This allows for time to develop a bond of trust; an aspect of medical practice I thoroughly enjoy.

What is the primary focus of your work/research?

My main focus is my clinical endocrinology practice, and I see a variety of patients, but I have a specialized interest in patients with pituitary disorders. My research interest is in the hormone oxytocin and how it might affect patients with pituitary hormone deficiencies (hypopituitarism).

What do you consider to be the future of your field?

In my opinion, the future is in specialized and individualized expert care when providing for patients with pituitary disorders. Given the rarity of these diseases, patients are best served by providers with interest and experience. Also, the more we know about pituitary tumors and the genetics behind them, the better we will be able to predict patient outcomes and tailor our therapies.

What should patients know about your field/what deserves more recognition/awareness?

My feeling is that patients need to know that they can/should advocate to get the care they deserve from providers with interest and experience in caring for individuals with their condition. They should also utilize the excellent patient-centered resources (like the PNA) to help educate and direct their care.

What would you like to convey about yourself to your patients?

The best part of my job is helping patients (and their families) understand their condition, their prognosis and their options. It’s tremendously rewarding to help someone feel more comfortable with what is often a completely foreign, and sometimes scary sounding group of diseases. I strive to always spend the time and energy needed to make patients feel more at ease with and educated about their disease.

• Why did you get involved with the PNA and what is the extent of your involvement?

Early in my career, I became excited to become more involved. My mentor has also been involved in the PNA for many years and recommended I become involved, as he found it an excellent resource for patients and providers.