Cushing Patients Could Be Diagnosed, Subtyped Using Plasma Steroid Levels

Posted on January 10, 2026 by MaryO

Patients with different subtypes of Cushing’s syndrome (CS) have distinct plasma steroid profiles. This could be used as a test for diagnosis and classification, a German study says.

The study, “Plasma Steroid Metabolome for Diagnosis and Subtyping Patients with Cushing Syndrome,” appeared in the journal Clinical Chemistry.

A quick diagnosis of CS is crucial so that doctors can promptly give therapy. However, diagnosing CS is often complicated by the multiple tests necessary not just to diagnose the disease but also to determine its particular subtype.

Cortisol, which leads to CS when produced at high levels, is a steroid hormone. But while earlier studies were conducted to determine whether patients with different subtypes of CS had distinct steroid profiles, the methods researchers used were cumbersome and have been discontinued for routine use.

Recently, a technique called LC-MS/MS has emerged for multi-steroid profiling in patients with adrenocortical dysfunction such as congenital adrenal hyperplasia, adrenal insufficiency and primary aldosteronism.

Researchers at Germany’s Technische Universität in Dresden used that method to determine whether patients with the three main subtypes of CS (pituitary, ectopic and adrenal) showed differences in plasma steroid profiles. They measured levels of 15 steroids produced by the adrenal glands in single plasma samples collected from 84 patients with confirmed CS and 227 age-matched controls.

They found that CS patients saw huge increases in the plasma steroid levels of 11-deoxycortisol (289%), 21-deoxycortisol (150%), 11-deoxycorticosterone (133%), corticosterone (124%) and cortisol (122%), compared to patients without the disease.

Patients with the ectopic subtype had the biggest jumps in levels of these steroids. However, plasma 18-oxocortisol levels were particularly low in ectopic disease. Other steroids demonstrated considerable variation.

Patients with the adrenal subtype had the lowest concentration of dehydroepiandrosterone (DHEA) and DHEA-SO4, which are androgens. Patients with the ectopic and pituitary subtype had the lowest concentration of aldosterone.

Through the use of 10 selected steroids, patients with different subtypes of CS could be identified almost as closely as with other tests, including the salivary and urinary free cortisol test, the dexamethasone-suppressed cortisol test, and plasma adrenocorticotropin levels. The misclassification rate using steroid levels was 9.5 percent, compared to 5.8 percent in other tests.

“This study using simultaneous LC-MS/MS measurements of 15 adrenal steroids in plasma establishes distinct steroid metabolome profiles that might be useful as a test for CS,” the team concluded, adding that using LC-MS/MS is advantageous, as specimen preparation is simple and the entire panel takes 12 minutes to run. This means it could be offered as a single test for both identification and subtype classification.

From https://cushingsdiseasenews.com/2018/01/02/plasma-steroid-levels-used-screen-diagnosis-subtyping-patients-cushing-syndrome/

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A Letter To Patients With Chronic Disease

Posted on January 10, 2026 by MaryO

MaryO’Note:  Dr. Rob was interviewed by Robin (staticnrg) and Mary O’Connor (MaryO) October 2, 2008 on BlogTalkRadio Cushing’s Help

Listen to this interview here: http://www.blogtalkradio.com/cushingshelp/2008/10/03/robin-staticnrg-and-mary-oconnor-maryo-interview-dr-rob-1

July 14, 2010
by Rob Lamberts

Dear Patients: You have it very hard, much harder than most people understand.  Having sat for 16 years listening to the stories, seeing the tiredness in your eyes, hearing you try to describe the indescribable, I have come to understand that I too can’t understand what your lives are like.  How do you answer the question, “how do you feel?” when you’ve forgotten what “normal” feels like?  How do you deal with all of the people who think you are exaggerating your pain, your emotions, your fatigue?  How do you decide when to believe them or when to trust your own body?  How do you cope with living a life that won’t let you forget about your frailty, your limits, your mortality?

I can’t imagine.

But I do bring something to the table that you may not know.  I do have information that you can’t really understand because of your unique perspective, your battered world.  There is something that you need to understand that, while it won’t undo your pain, make your fatigue go away, or lift your emotions, it will help you.  It’s information without which you bring yourself more pain than you need suffer; it’s a truth that is a key to getting the help you need much easier than you have in the past.  It may not seem important, but trust me, it is.

You scare doctors.

No, I am not talking about the fear of disease, pain, or death.  I am not talking about doctors being afraid of the limits of their knowledge.  I am talking about your understanding of a fact that everyone else seems to miss, a fact that many doctors hide from: we are normal, fallible people who happen to doctor for a job.  We are not special.  In fact, many of us are very insecure, wanting to feel the affirmation of people who get better, hearing the praise of those we help.  We want to cure disease, to save lives, to be the helping hand, the right person in the right place at the right time.

But chronic unsolvable disease stands square in our way.  You don’t get better, and it makes many of us frustrated, and it makes some of us mad at you.  We don’t want to face things we can’t fix because it shows our limits.  We want the miraculous, and you deny us that chance.

And since this is the perspective you have when you see doctors, your view of them is quite different.  You see us getting frustrated.  You see us when we feel like giving up.  When we take care of you, we have to leave behind the illusion of control, of power over disease.  We get angry, feel insecure, and want to move on to a patient who we can fix, save, or impress.  You are the rock that proves how easily the ship can be sunk.  So your view of doctors is quite different.

Then there is the fact that you also possess something that is usually our domain: knowledge.  You know more about your disease than many of us do – most of us do.  Your MS, rheumatoid arthritis, end-stage kidney disease, Cushing’s disease, bipolar disorder, chronic pain disorder, brittle diabetes, or disabling psychiatric disorder – your defining pain –  is something most of us don’t regularly encounter.  It’s something most of us try to avoid.  So you possess deep understanding of something that many doctors don’t possess.  Even doctors who specialize in your disorder don’t share the kind of knowledge you can only get through living with a disease.  It’s like a parent’s knowledge of their child versus that of a pediatrician.  They may have breadth of knowledge, but you have depth of knowledge that no doctor can possess.

So when you approach a doctor – especially one you’ve never met before – you come with a knowledge of your disease that they don’t have, and a knowledge of the doctor’s limitations that few other patients have.  You see why you scare doctors?  It’s not your fault that you do, but ignoring this fact will limit the help you can only get from them.  I know this because, just like you know your disease better than any doctor, I know what being a doctor feels like more than any patient could ever understand.  You encounter doctors intermittently (more than you wish, perhaps); I live as a doctor continuously.

So let me be so bold as to give you advice on dealing with doctors.  There are some things you can do to make things easier, and others that can sabotage any hope of a good relationship:

  1. Don’t come on too strong – yes, you have to advocate for yourself, but remember that doctors are used to being in control.  All of the other patients come into the room with immediate respect, but your understanding has torn down the doctor-god illusion.  That’s a good thing in the long-run, but few doctors want to be greeted with that reality from the start.  Your goal with any doctor is to build a partnership of trust that goes both ways, and coming on too strong at the start can hurt your chances of ever having that.
  2. Show respect – I say this one carefully, because there are certainly some doctors who don’t treat patients with respect – especially ones like you with chronic disease.  These doctors should be avoided.  But most of us are not like that; we really want to help people and try to treat them well.  But we have worked very hard to earn our position; it was not bestowed by fiat or family tree.  Just as you want to be listened to, so do we.
  3. Keep your eggs in only a few baskets – find a good primary care doctor and a couple of specialists you trust.  Don’t expect a new doctor to figure things out quickly.  It takes me years of repeated visits to really understand many of my chronic disease patients.  The best care happens when a doctor understands the patient and the patient understands the doctor.  This can only happen over time.  Heck, I struggle even seeing the chronically sick patients for other doctors in my practice.  There is something very powerful in having understanding built over time.
  4. Use the ER only when absolutely needed – Emergency room physicians will always struggle with you.  Just expect that.  Their job is to decide if you need to be hospitalized, if you need emergency treatment, or if you can go home.  They might not fix your pain, and certainly won’t try to fully understand you.  That’s not their job.  They went into their specialty to fix problems quickly and move on, not manage chronic disease.  The same goes for any doctor you see for a short time: they will try to get done with you as quickly as possible.
  5. Don’t avoid doctors – one of the most frustrating things for me is when a complicated patient comes in after a long absence with a huge list of problems they want me to address.  I can’t work that way, and I don’t think many doctors can.  Each visit should address only a few problems at a time, otherwise things get confused and more mistakes are made.  It’s OK to keep a list of your own problems so things don’t get left out – I actually like getting those lists, as long as people don’t expect me to handle all of the problems.  It helps me to prioritize with them.
  6. Don’t put up with the jerks – unless you have no choice (in the ER, for example), you should keep looking until you find the right doctor(s) for you.  Some docs are not cut out for chronic disease, while some of us like the long-term relationship.  Don’t feel you have to put up with docs who don’t listen or minimize your problems.  At the minimum, you should be able to find a doctor who doesn’t totally suck.
  7. Forgive us – Sometimes I forget about important things in my patients’ lives.  Sometimes I don’t know you’ve had surgery or that your sister comes to see me as well.  Sometimes I avoid people because I don’t want to admit my limitations.  Be patient with me – I usually know when I’ve messed up, and if you know me well I don’t mind being reminded.  Well, maybe I mind it a little.

You know better than anyone that we docs are just people – with all the stupidity, inconsistency, and fallibility that goes with that – who happen to doctor for a living.  I hope this helps, and I really hope you get the help you need.  It does suck that you have your problem; I just hope this perhaps decreases that suckishness a little bit.

Sincerely,

Dr. Rob

Post Script: This post has generated a huge amount of conversation and interest (as witnessed by the large number of comments!).  I very much appreciate the dialogue it has spawned both here and across the web.  I’ve subsequently written follow-up posts explaining my thoughts in more detail – largely in response to the comments here.  One of them discusses in more detail my own experiences as a doctor and the second talks of the importance of  knowing and being known.  Reading these will give you a better picture of my thought process and perspective on this.Dr. Rob

From http://more-distractible.org/musings/2010/07/14/a-letter-to-patients-with-chronic-disease

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Metastatic Pituitary Carcinoma Successfully Treated with Radiation, Chemo.

Posted on January 10, 2026 by MaryO

A man with Cushing’s disease — caused by an adrenocorticotrophic hormone (ACTH)-secreting pituitary adenoma — who later developed metastases in the central nervous system without Cushing’s recurrence, was successfully treated over eight years with radiation and chemotherapy, according to a case report.

The report, “Long-term survival following transformation of an adrenocorticotropic hormone secreting pituitary macroadenoma to a silent corticotroph pituitary carcinoma: Case report,” was published in the journal World Neurosurgery.

Pituitary carcinomas make up only 0.1-0.2% of all pituitary tumors and are characterized by a primary pituitary tumor that metastasizes into cranial, spinal, or systemic locations. Fewer than 200 cases have been reported in the literature.

Most of these carcinomas secrete hormones, with ACTH being the most common. Though the majority of ACTH-secreting carcinomas present with Cushing’s disease, about one-third do not show symptoms of the condition and have normal serum cortisol and ACTH levels. These are called silent corticotroph adenomas and are considered more aggressive.

A research team at the University of Alabama at Birmingham presented the case of a 51-year-old Caucasian man with ACTH-dependent Cushing’s disease. He had undergone an incomplete transsphenoidal (through the nose) resection of an ACTH-secreting pituitary macroadenoma – larger than 10 mm in size – and radiation therapy the year before.

At referral in August 1997, the patient had persistent high cortisol levels and partial hypopituitarism, or pituitary insufficiency. He exhibited Cushing’s symptoms, including facial reddening, moon facies, weight gain above the collarbone, “buffalo hump,” and abdominal stretch marks.

About two years later, the man was weaned off ketoconazole — a medication used to lower cortisol levels — and his cortisol levels had been effectively reduced. He also had no physical manifestations of Cushing’s apart from facial reddening.

In May 2010, the patient reported two episodes of partial seizures, describing two spells of right arm tingling, followed by impaired peripheral vision. Imaging showed a 2.1-by-1-cm mass with an associated cyst within the brain’s right posterior temporal lobe, as well as a 1.8-by-1.2-cm mass at the cervicomedullary junction, which is the region where the brainstem continues as the spinal cord. His right temporal cystic mass was then removed by craniotomy.

A histopathologic analysis was consistent with pituitary carcinoma. Cell morphology was generally similar to the primary pituitary tumor, but cell proliferation was higher. Physical exams showed no recurrence of Cushing’s disease and 24-hour free urinary cortisol was within the normal range.

His cervicomedullary metastasis was treated with radiation therapy in July 2010. He took the oral chemotherapy temozolomide until August 2011, and Avastin (bevacizumab, by Genentech) was administered from September 2010 to November 2012.

At present, the patient continues to undergo annual imaging and laboratory draws. He receives treatment with hydrocortisone, levothyroxine — synthetic thyroid hormone — and testosterone replacement with androgel.

His most recent exam showed no progression over eight years of a small residual right temporal cyst, a residual mass along the pituitary stalk — the connection between the hypothalamus and the pituitary gland — and a small residual mass at the cervicomedullary junction. Lab results continue to show no Cushing’s recurrence.

“Our case is the first to document a patient who initially presented with an endocrinologically active ACTH secreting pituitary adenoma and Cushing’s disease who later developed cranial and spinal metastases without recurrence of Cushing’s disease and transformation to a silent corticotroph pituitary carcinoma,” the scientists wrote.

They added that the report is also the first documenting “8 years of progression-free survival in a patient with pituitary carcinoma treated with radiotherapy, [temozolomide] and bevacizumab.”

Adapted from https://cushingsdiseasenews.com/2019/01/03/successful-treatment-pituitary-carcinoma-radiation-chemo-case-report/

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