Cushing’s Syndrome Subtype Affects Postoperative Time to Adrenal Recovery

Posted on January 25, 2026 by MaryO

Berr CM. J Clin Endocrinol Metab. 2014;doi:10.1210/jc.2014-3632.

January 16, 2015

In patients undergoing curative surgical tumor resection for Cushing’s syndrome, the time to recovery of adrenal function is contingent upon the underlying etiology of the disease, according to recent findings.

In the retrospective study, researchers reviewed case records of 230 patients with Cushing’s syndrome. All patients were seen at a tertiary care center in Munich between 1983 and 2014, whose cases were documented in the German Cushing’s Registry. Patients were divided into three subgroups of Cushing’s syndrome: Cushing’s disease, adrenal Cushing’s syndrome and ectopic Cushing’s syndrome.

After applying various exclusion criteria, the researchers identified 91 patients of the three subgroups who were undergoing curative surgery at the hospital. The patients were followed for a median of 6 years. The researchers defined adrenal insufficiency as the need for hydrocortisone replacement therapy, and collected this information from patient records and laboratory results.

The duration of adrenal insufficiency was calculated as the interval between successful surgery and the completion of hydrocortisone replacement therapy. Cushing’s syndrome recurrence was defined as biochemical and clinical signs of hypercortisolism.

The researchers found a significant difference between Cushing’s syndrome subtypes in the likelihood of regaining adrenal function within 5 years of follow-up: The probability was 82% in ectopic Cushing’s syndrome, 58% in Cushing’s disease and 38% in adrenal Cushing’s syndrome (P=.001). Among the 52 participants who recovered adrenal function, the median type to recovery also differed between subtypes and was 0.6 years in ectopic Cushing’s syndrome, 1.4 years in Cushing’s disease and 2.5 years in adrenal Cushing’s syndrome (P=.002).

An association also was found between younger age and adrenal recovery in the Cushing’s disease participants (P=.012).

This association was independent of sex, BMI, symptom duration, basal adrenocorticotropic hormone and cortisol levels. No association was seen between adrenal recovery and length of hypercortisolism or postoperative glucocorticoid replacement dosage.

“It is the main finding of this series that the median duration of tertiary adrenal insufficiency was dependent on the etiology of [Cushing’s syndrome]: It was shortest in the ectopic [Cushing’s syndrome], intermediate in [Cushing’s disease] and longest in adrenal [Cushing’s syndrome] caused by unilateral cortisol producing adenoma,” the researchers wrote. “The significant difference to [Cushing’s disease] is an unexpected finding since by biochemical means cortisol excess is generally less severe in adrenal [Cushing’s syndrome]. If confirmed by others, our data have clinical impact for the follow-up of patients after curative surgery: Patients should be informed that adrenocortical function may remain impaired in benign conditions such as cortisol-producing adenoma.”

Disclosure: The study was funded in part by the Else Kröner-Fresenius Stiftung.

The original article is here: Healio

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Think Like a Doctor: Red Herrings Solved!

Posted on January 11, 2026 by MaryO

By LISA SANDERS, M.D.

On Thursday we challenged Well readers to take the case of a 29-year-old woman with an injured groin, a swollen foot and other abnormalities. Many of you found it as challenging as the doctors who saw her. I asked for the right test as well as the right diagnosis. More than 200 answers were posted.

The right test was…

The dexamethasone suppression test,though I counted those of you who suggested measuring the cortisol in the urine.

The right diagnosis was…

Cushing’s disease

More than a dozen of you got the right answer or the right test, but Dr. Davin Quinn, a consultant psychiatrist at the University of New Mexico Hospital, was the first to be right on both counts. As soon as he saw that the patient’s cortisol level was increased, he thought of Cushing’s. And he had treated a young patient like this one some years ago as a second year resident.

The Diagnosis:

Cushing’s disease is caused by having too much of the stress hormone cortisol in the body. Cortisol is made in the adrenal glands, little pyramid shaped organs that sit atop the kidneys. It is normally a very tightly regulated hormone that helps the body respond to physical stress.

Sometimes the excess comes from a tumor in the adrenal gland itself that causes the little organ to go into overdrive, making too much cortisol. More often the excess occurs when a tumor in the pituitary gland in the brain results in too much ACTH, the hormone that controls the adrenal gland.

In the body, cortisol’s most fundamental job is to make sure we have enough glucose around to get the body’s work done. To that end, the hormone drives appetite, so that enough fuel is taken in through the food we eat. When needed, it can break muscle down into glucose. This essential function accounts for the most common symptoms of cortisol excess: hyperglycemia, weight gain and muscle wasting. However, cortisol has many functions in the body, and so an excess of the hormone can manifest itself in many different ways.

Cushing’s was first described by Dr. Harvey Cushing, a surgeon often considered the father of modern neurosurgery. In a case report in 1912, he described a 23-year-old woman with sudden weight gain, mostly in the abdomen; stretch marks from skin too thin and delicate to accommodate the excess girth; easy bruising; high blood pressure and diabetes.

Dr. Cushing’s case was, it turns out, a classic presentation of the illness. It wasn’t until 20 years later that he recognized that the disease had two forms. When it is a primary problem of an adrenal gland gone wild and producing too much cortisol on its own, the disease is known as Cushing’s syndrome. When the problem results from an overgrown part of the pituitary making too much ACTH and causing the completely normal adrenal glands to overproduce the hormone, the illness is called Cushing’s disease.

It was an important distinction, since the treatment often requires a surgical resection of the body part where the problem originates. Cushing’s syndrome can also be caused by steroid-containing medications, which are frequently used to treat certain pulmonary and autoimmune diseases.

How the Diagnosis Was Made:

After the young woman got her lab results from Dr. Becky Miller, the hematologist she had been referred to after seeing several other specialists, the patient started reading up on the abnormalities that had been found. And based on what she found on the Internet, she had an idea of what was going on with her body.

“I think I have Cushing’s disease,” the patient told her endocrinologist when she saw him again a few weeks later.

The patient laid out her argument. In Cushing’s, the body puts out too much cortisol, one of the fight-or-flight stress hormones. That would explain her high blood pressure. Just about everyone with Cushing’s disease has high blood pressure.

She had other symptoms of Cushing’s, too. She bruised easily. And she’d been waking up crazy early in the morning for the past year or so – around 4:30 – and couldn’t get back to sleep. She’d heard that too much cortisol could cause that as well. She was losing muscle mass – she used to have well-defined muscles in her thighs and calves. Not any more. Her belly – it wasn’t huge, but it was a lot bigger than it had been. Cushing’s seemed the obvious diagnosis.

The doctor was skeptical. He had seen Cushing’s before, and this patient didn’t match the typical pattern. She was the right age for Cushing’s and she had high blood pressure, but nothing else seemed to fit. She wasn’t obese. Indeed, she was tall (5- foot-10) and slim (150 pounds) and athletic looking. She didn’t have stretch marks; she didn’t have diabetes. She said she bruised easily, but the endocrinologist saw no bruises on exam. Her ankle was still swollen, and Cushing’s can do that, but so can lots of other diseases.

The blood tests that Dr. Miller ordered measuring the patient’s ACTH and cortisol levels were suggestive of the disease, but many common problems — depression, alcohol use, eating disorders — can cause the same result. Still, it was worth taking the next step: a dexamethasone suppression test.

Testing, Then Treatment:

The dexamethasone suppression test depends on a natural negative feedback loop whereby high levels of cortisol suppress further secretion of the hormone. Dexamethasone is an artificial form of cortisol. Given in high doses, it will cause the level of naturally-occurring cortisol to drop dramatically.

The patient was told to take the dexamethasone pills the night before having her blood tested. The doctor called her the next day.

“Are you sure you took the pills I gave you last night?” the endocrinologist asked her over the phone. The doctor’s voice sounded a little sharp to the young woman, tinged with a hint of accusation.

“Of course I took them,” she responded, trying to keep her voice clear of any irritation.

“Well, the results are crazy,” he told her and proposed she take another test: a 24-hour urine test.

Because cortisol is eliminated through the kidneys, collecting a full day’s urine would show how much cortisol her body was making. So the patient carefully collected a day’s worth of urine.

A few days later, the endocrinologist called again: her cortisol level was shockingly high. She was right, the doctor conceded, she really did have Cushing’s.

An M.R.I. scan revealed a tiny tumor on her pituitary. A couple of months later, she had surgery to remove the affected part of the gland.

After recovering from the surgery, the patient’s blood pressure returned to normal, as did her red blood cell count and her persistently swollen ankle. And she was able to once again sleep through the night.

Red Herrings Everywhere:

As many readers noted, there were lots of findings that didn’t really add up in this case. Was this woman’s groin sprain part of the Cushing’s? What about the lower extremity swelling, and the excess red blood cell count?

In the medical literature, there is a single case report of high red blood cell counts as the presenting symptom in a patient with Cushing’s. And with this patient, the problem resolved after her surgery – so maybe they were linked.

And what about the weird bone marrow biopsy? The gastritis? The enlarged spleen? It’s hard to say for certain if any of these problems was a result of the excess cortisol or if she just happened to have other medical problems.

Why the patient didn’t have the typical symptoms of Cushing’s is easier to explain. She was very early in the course of the disease when she got her diagnosis. Most patients are diagnosed once symptoms have become more prominent

By the time this patient had her surgery, a couple of months later, the round face and belly characteristic of cortisol excess were present. Now, two years after her surgery, none of the symptoms remain.

From http://well.blogs.nytimes.com/2014/01/17/think-like-a-doctor-red-herrings-solved/?_php=true&_type=blogs&_r=0

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Participating in Life

Posted on January 7, 2026 by MaryO

I think that this is so important, especially with our health.  Had I not been an active participant and followed several doctors’ advice 25 years ago, I’d most likely not been here to write this.

I see this all the time, though.  Whatever the doctor says is true.  People will say that the doctor gave me this or that med but they don’t know what it is for.

I just don’t get how people can take meds and not have a clue what they are, how they work, how they might interact with other drugs they may be taking.  But it happens because people blindly follow whatever a doctor may give them.

Participation is so important – you have to know how YOU’RE feeling, what YOUR symptom are.  Do your own research.  Your doctor doesn’t know what it feels like to live in your body no matter how much you try to tell him/her.

Ultimately, you are the one who cares most about yourself and the only one who can make a difference through your research, thoughts and actions.

Just because a doctor gives you something, you don’t have to take it.  24 years ago a locally well-known neurologist “gave me” Xanax. Since he couldn’t see my tumor with his Magnetic Resonance Imaging (MRI) machine there was “no possibility” that it existed.  Had I followed his advice, taken the Xanax and stopped pursuing a Cushing’s diagnosis I would most have likely died by now.

The doctor was going by the odds.  The odds were that I really didn’t have a pituitary tumor.  But I’m not a statistic and neither are you.  Follow your instincts and take care of YOU.  This is the only life you’ll ever have.

The most healing thing we can do for ourselves is to participate in the process of our lives as fully as we can-even when the unexpected and the fearful happen.

~Today’s Page-a-Day calendar

What do YOU do to keep participating in your health care and daily life?

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Environmental Issues and Cushing’s

Posted on December 30, 2025 by MaryO

We’ve had quite a bit of discussion on this topic on the Cushing’s Help message boards.  A few samples:

We live in a part of Ontario known as “the Chemical Valley”. We are surrounded by Dow Chemical, Imperial Oil, Dupont, British Petroleum, Shell Oil and about 12 other chemical plants.
There has been many people complaining about the high rate of cancer in our area and the government was forced to do a health study in our area but as of yet they haven’t figured out how to do the testing. My guess is they don’t want us to know how sick we really are.
We are part of the Goiter Belt which I think extends to PA. There are very few people here who do not have thyroid problems.
My 2 brothers and 2 sisters are suffering the same as I am and so are all our children! Both my parents died in their 50’s from untreated hypothyroid disease. Probably had adrenal/pituitary damage too when I think about their symptoms.
I see hypothyroid people everywhere I look and have since started checking for the hump and cushing signs.
Holy endocrine system Batman, I think we are all suffering at the hands of the Big Oil Companies. My husband works for British Petroleum!!!!

I hate to even think about it. Growing up in Buffalo – erie county new york, which is nestled between lake ontario & lake erie, I don’t believe the water is safe to drink. There are several epa areas of concern around lake ontario & lake erie. AOC’s (areas of concern) are highly polluted areas. Specificlly erie canal & buffalo river are awful. I found out some years ago that a playground that I frequented as a child was a landfill for hazardous chemicals. Now I have a pituitary tumor, coincidence? Probably not

I live near Green Bay WI, which is part of Lake Michigan. I believe our drinking water comes from the Bay. The water is polluted from the papermills (PCPs). I also did play on a heavily fertilized and treated lawn from a chemical company for at least 5 years when I was little. I had a thyroid nodule removed, hypothyroidism, and I am still in the testing phase to see if I have a pituitary tumor. My father also has hopothyroid, and seems to have kind of a hump. He has had cancer as well.
I remember the nuclear accident in the 80’s. It was really scary. I remember them saying something like it was worse than what they reported.

This is one of my future quests, I live in a town on 10,000 people and there are many cases of brain and pituitary tumors, I hear it all the time, I know of at least 3 definite pituitary cushing’s cases in my small town. My future goal when I am feeling better is to put my story in the paper, have people call me if they or someone they know has a funtioning pituitary tumor, also brain tumors and brain cancer has some large numbers too. The state sent me a letter I had to fill out when I first found out about my tumor, it was manditory, if I did not fill it out they where going to have my doctor fill it out so I did. So somewhere someone is keeping track of brain tumors in my town. I want to find out the numbers, if it is as bad as I think it is I am going to calll CDC to find out why. I also want to start a support group. But I need to feel better first because this is going to be a big undertaking.

There are many more postings on this topic.

From Wennersten: There’s something in the water

Scientists now tell us there is something in our waters that we least expected.

That “something” is a class of chemicals called endocrine disruptors, and Dr. Vicki Blazer, a fisheries biologist at the United States Geological Survey, thinks the chemicals are responsible for the high concentrations of intersex fish found in the Potomac, and other rivers in the mid-Atlantic.

The chemicals also prove a threat to human health, but a bit of explanation, first.

Our body’s endocrine system is a complex network of glands and hormones that regulate growth, development, and the operation of various organs. The endocrine glands (for example the thyroid, adrenal, pancreas, testes, ovaries and pituitary glands) release hormones that act as chemical messengers and regulate many life functions.

Endocrine disrupters are chemicals that interfere with this system, by either acting like a hormone, or blocking a hormone’s function. They can be natural, but many are man-made such as PCBs, dioxin, DDT and other pesticides, pharmaceuticals and plasticizers. They are found in many products, including plastic bottles, metal food cans, detergents, flame retardants, food, toys, cosmetics and pesticides. They enter the environment and are now commonly found in our streams, rivers, bays and oceans, where scientists are observing problems.

Then Great Lakes Area of Concerns shows a map of problem areas

Forty-three AOCs have been identified: 26 located entirely within the United States; 12 located wholly within Canada; and five that are shared by both countries. Two Canadian AOCs have been delisted and one U.S. AOC has been delisted leaving 30 AOCs remaining on the U.S. side of the border.

RAPs are being developed for each of these AOCs to address impairments to any one of 14 beneficial uses (e.g., restrictions on fish and wildlife consumption, dredging activities, or drinking water consumption) associated with these areas.  USEPA has assigned RAP Liaisons for AOCs.  Sediments have been identified as serious problems in many AOCs. AOC Principles and Guidelines have been finalized for formally delisting these areas as beneficial uses are restored.

What do YOU think?  Are you in one of these areas?

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Survival Probabilities in Patients with Ectopic Cushing’s Syndrome

Posted on June 9, 2025 by MaryO

Abstract

Objective

We aimed to estimate 1- and 5-year survival probabilities in patients with different forms of ectopic Cushing’s syndrome (ECS) and identify factors influencing survival.

Methods

In this systematic review and meta-analysis, we searched the online databases PubMed, Scopus and Web of Science up to October 18th, 2023, for studies reporting survival in patients with ECS. Data extraction and risk of bias assessment were performed by three independent investigators. Primary outcome was survival in patients with ECS and secondary outcome was factors influencing survival.

Results

We included 40 studies with a total of 1148 patients. The pooled mean 1-year survival probability for ECS of mixed etiologies was 78% while the mean pooled 5-year survival probability was 47%. The 5-year survival probabilities for patients with pulmonary neuroendocrine neoplasm (NEN) was 81%, occult ECS 66%, thymic NEN 50% and pancreatic NEN 40%. Only eight studies reported factors influencing survival, where total resection of the primary tumor was associated with better overall survival, and unresectable tumors, metastatic disease at diagnosis, severe hypercortisolism, hypokalemia, and new onset diabetes mellitus were associated with worse prognosis.

Conclusion

Survival in ECS varies considerably, mainly due to the underlying origin of the tumor, tumor stage and severity of the hypercortisolism. Further studies analyzing the importance of factors affecting survival are needed.

Accepted manuscripts
Accepted manuscripts are PDF versions of the author’s final manuscript, as accepted for publication by the journal but prior to copyediting or typesetting. They can be cited using the author(s), article title, journal title, year of online publication, and DOI. They will be replaced by the final typeset articles, which may therefore contain changes. The DOI will remain the same throughout.

This content is only available as a PDF.

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