Pseudo-Cushing’s syndrome is when symptoms are similar to those of Cushing’s syndrome, but further tests show that the syndrome is not present.
Common causes include consuming too much alcohol, obesity, persistently high blood glucose levels, pregnancy, and depression.
People sometimes ask me how I found out I had Cushing’s Disease. Theoretically, it was easy. In practice, it was very difficult.
In 1983 I came across a little article in the Ladies Home Journal which said: “If you have these symptoms…”
I found the row with my symptoms and the answer read “…ask your doctor about Cushing’s”.
After that article, I started reading everything I could on Cushing’s, I bought books that mentioned Cushing’s. I asked and asked my doctors for many years and all of them said that I couldn’t have it. It was too rare. I was rejected each time.
Due to all my reading at the library, I was sure I had Cushing’s but no one would believe me. My doctors would say that Cushing’s Disease is too rare, that I was making this up and that I couldn’t have it.
In med school, student doctors are told “When you hear hoofbeats, think horses, not zebras“.
According to Wikipedia: “Zebra is a medical slang term for a surprising diagnosis. Although rare diseases are, in general, surprising when they are encountered, other diseases can be surprising in a particular person and time, and so “zebra” is the broader concept.
The term derives from the aphorism “When you hear hoofbeats behind you, don’t expect to see a zebra”, which was coined in a slightly modified form in the late 1940s by Dr. Theodore Woodward, a former professor at the University of Maryland School of Medicine in Baltimore. Since horses are the most commonly encountered hoofed animal and zebras are very rare, logically you could confidently guess that the animal making the hoofbeats is probably a horse. By 1960, the aphorism was widely known in medical circles.”
So, doctors typically go for the easily diagnosed, common diseases. Just because something is rare doesn’t mean that no one gets it. We shouldn’t be dismissed because we’re too hard to diagnose.
When I was finally diagnosed in 1987, 4 years later, it was only because I started bleeding under the skin. My husband made circles around the outside perimeter each hour with a marker so my leg looked like a cut log with rings.
When I went to my Internist the next day he was shocked at the size of the rings. He now thought I had a blood disorder so he sent me to a Hematologist/Oncologist.
Fortunately, that new doctor ran a twenty-four-hour urine test and really looked at me and listened to me. Both he and his partner recognized that I had Cushing’s but, of course, couldn’t do anything further with me. They packed me off to an endo where the process started again.
My final diagnosis was in October 1987. Quite a long time to simply “…ask your doctor about Cushing’s”.
Looking back, I can see Cushing’s symptoms much earlier than 1983. But, that ‘s for a different post.
Cushing’s syndrome is a condition you probably have never heard of, but for those who have it, the symptoms can be quite scary. Worse still, getting it diagnosed can take a while. Cushing’s syndrome occurs when the tissues of the body are exposed to high levels of cortisol for an extended amount of time. Cortisol is the hormone the body produces to help you in times of stress. It is good to have cortisol at normal levels, but when those levels get too high it causes health problems. Although cortisol is related to stress, there is no evidence that Cushing’s syndrome is directly or indirectly caused by stress.
Cushing’s syndrome is considered rare, but that may be because it is under-reported. As a result, we don’t have good estimates for how many people have it, which is why the estimates for the actual number of cases vary so much–from 5 to 28 million people.[1] The most common age group that Cushing’s affects are those 20 to 50 years old. It is thought that obesity, type 2 diabetes, and high blood pressure may increase your risk of developing this syndrome.[2]
Cushing’s syndrome is caused by high cortisol levels. Cushing’s disease is a specific form of Cushing’s syndrome. People with Cushing’s disease have high levels of cortisol because they have a non-cancerous (benign) tumor in the pituitary gland. The tumor releases adrenocorticotropin hormone (ACTH), which causes the adrenal glands to produce excessive cortisol.
Cushing’s syndrome that is not Cushing’s disease can be also caused by high cortisol levels that result from tumors in other parts of the body. One of the causes is “ectopic ACTH syndrome.” This means that the hormone-releasing tumor is growing in an abnormal place, such as the lungs or elsewhere. The tumors can be benign, but most frequently they are cancerous. Other causes of Cushing’s syndrome are benign tumors on the adrenal gland (adrenal adenomas) and less commonly, cancerous adrenal tumors (adrenocortical carcinomas). Both secrete cortisol, causing cortisol levels to get too high.
In some cases, a person can develop Cushing’s syndrome from taking steroid medications, such as prednisone. These drugs, known as corticosteroids, mimic the cortisol produced by the body. People who have Cushing’s syndrome from steroid medications do not develop a tumor.[3]
The appearance of people with Cushing’s syndrome starts to change as cortisol levels build up. Regardless of what kind of tumor they have or where the tumor is located, people tend to put on weight in the upper body and abdomen, with their arms and legs remaining thin; their face grows rounder (“moon face”); they develop fat around the neck; and purple or pink stretch marks appear on the abdomen, thighs, buttocks or arms. Individuals with the syndrome usually experience one or more of the following symptoms: fatigue, muscle weakness, high glucose levels, anxiety, depression, and high blood pressure. Women are more likely than men to develop Cushing’s syndrome, and when they do they may have excess hair growth, irregular or absent periods, and decreased fertility.[4]
These symptoms seem distinctive, yet it is often difficult for those with Cushing’s syndrome to get an accurate diagnosis. Why? While Cushing’s is relatively rare, the signs and symptoms are common to many other diseases. For instance, females with excess hair growth, irregular or absent periods, decreased fertility, and high glucose levels could have polycystic ovarian syndrome, a disease that affects many more women than Cushing’s. Also, people with metabolism problems (metabolic syndrome), who are at higher than average risk for diabetes and heart disease, also tend to have abdominal fat, high glucose levels and high blood pressure.[5]
When Cushing’s syndrome is suspected, a test is given to measure cortisol in the urine. This test measures the amount of free or unbound cortisol filtered by the kidneys and then released over a 24 hour period through the urine. Since the amount of urinary free cortisol (UFC) can vary a lot from one test to another—even in people who don’t have Cushing’s—experts recommend that the test be repeated 3 times. A diagnosis of Cushing’s is given when a person’s UFC level is 4 times the upper limit of normal. One study found this test to be highly accurate, with a sensitivity of 95% (meaning that 95% of people who have the disease will be correctly diagnosed by this test) and a specificity of 98% (meaning that 98% of people who do not have the disease will have a test score confirming that).[6] However, a more 2010 study estimated the sensitivity as only between 45%-71%, but with 100% specificity.[7] This means that the test is very accurate at telling people who don’t have Cushing’s that they don’t have it, but not so good at identifying the people who really do have Cushing’s. The authors that have analyzed these studies advise that patients use the UFC test together with other tests to confirm the diagnosis, but not as the initial screening test.[8]
Other common tests that may be used to diagnose Cushing’s syndrome are: 1) the midnight plasma cortisol and late-night salivary cortisol measurements, and 2) the low-dose dexamethasone suppression test (LDDST). The first test measures the amount of cortisol levels in the blood and saliva at night. For most people, their cortisol levels drop at night, but people with Cushing’s syndrome have cortisol levels that remain high all night. In the LDDST, dexamethasone is given to stop the production of ACTH. Since ACTH produces cortisol, people who don’t have Cushing’s syndrome will get lower cortisol levels in the blood and urine. If after giving dexamethasone, the person’s cortisol levels remain high, then they are diagnosed with Cushing’s.[9]
Even when these tests, alone or in combination, are used to diagnose Cushing’s, they don’t explain the cause. They also don’t distinguish between Cushing’s syndrome, and something called pseudo-Cushing state.
Some people have an abnormal amount of cortisol that is caused by something unrelated to Cushing’s syndrome such as polycystic ovarian syndrome, depression, pregnancy, and obesity. This is called pseudo-Cushing state. Their high levels of cortisol and resulting Cushing-like symptoms can be reversed by treating whatever disease is causing the abnormal cortisol levels. In their study, Dr. Giacomo Tirabassi and colleagues recommend using the desmopressin (DDAVP) test to differentiate between pseudo-Cushing state and Cushing’s. The DDAVP test is especially helpful in people who, after being given dexamethasone to stop cortisol production, continue to have moderate levels of urinary free cortisol (UFC) and midnight serum cortisol.[10]
An additional test that is often used to determine if one has pseudo-Cushing state or Cushing’s syndrome is the dexamethasone-corticotropin-releasing hormone (CRH) test. Patients are injected with a hormone that causes cortisol to be produced while also being given another hormone to stop cortisol from being produced. This combination of hormones should make the patient have low cortisol levels, and this is what happens in people with pseudo-Cushing state. People with Cushing’s syndrome, however, will still have high levels of cortisol after being given this combination of hormones.[11]
Perhaps because Cushing’s is rare or under-diagnosed, few treatments are available. There are several medications that are typically the first line of treatment. None of the medications can cure Cushing’s, so they are usually taken until other treatments are given to cure Cushing’s, and only after that if the other treatment fails.
The most common treatment for Cushing’s disease is transsphenoidal surgery, which requires the surgeon to reach the pituitary gland through the nostril or upper lip and remove the tumor. Radiation may also be used instead of surgery to shrink the tumor. In patients whose Cushing’s is caused by ectopic ACTH syndrome, all cancerous cells need to be wiped out through surgery, chemotherapy, radiation or a variety of other methods, depending on the location of the tumor. Surgery is also recommended for adrenal tumors. If Cushing’s syndrome is being caused by corticosteroid (steroid medications) usage, the treatment is to stop or lower your dosage.[12]
According to a 2014 study in the Journal of Clinical Endocrinology and Metabolism, almost no new treatment options have been introduced in the last decade. Researchers and doctors have focused most of their efforts on improving existing treatments aimed at curing Cushing’s. Unfortunately, medications used to control Cushing’s prior to treatment and when treatment fails are not very effective.
Many of the medications approved by the FDA for Cushing’s syndrome and Cushing’s disease, such as pasireotide, metyrapone, and mitotane, have not been extensively studied. The research presented to the FDA by the makers of these three drugs did not even make clear what an optimal dose was.[13] In another 2014 study, published in Clinical Epidemiology, researchers examined these three same drugs, along with ten others, and found that only pasireotide had moderate evidence to support its approval. The other drugs, many of which are not FDA approved for Cushing’s patients, had little or no available evidence to show that they work.[14] They can be sold, however, because the FDA has approved them for other diseases. Unfortunately, that means that neither the FDA nor anyone else has proven the drugs are safe or effective for Cushing patients.
Pasireotide, the one medication with moderate evidence supporting its approval, caused hyperglycemia (high blood sugar) in 75% of patients who participated in the main study for the medication’s approval for Cushing’s. As a result of developing hyperglycemia, almost half (46%) of the participants had to go on blood-sugar lowering medications. The drug was approved by the FDA for Cushing’s anyway because of the lack of other effective treatments.
Other treatments used for Cushing’s have other risks. Ketoconazole, believed to be the most commonly prescribed medications for Cushing’s syndrome, has a black box warning due to its effect on the liver that can lead to a liver transplant or death. Other side effects include: headache, nausea, irregular periods, impotence, and decreased libido. Metyrapone can cause acne, hirsutism, and hypertension. Mitotane can cause neurological and gastrointestinal symptoms such as dizziness, nausea, and diarrhea and can cause an abortion in pregnant women.[15]
Cushing’s syndrome is a serious disease that needs to be treated, but there are treatment options available for you if you are diagnosed with the disease. If the symptoms in this article sound familiar, it’s time for you to go see your doctor. Make an appointment with your general practitioner, and explain your symptoms to him or her. You will most likely be referred to an endocrinologist, who will be able to better understand your symptoms and recommend an appropriate course of action.
All articles are reviewed and approved by Dr. Diana Zuckerman and other senior staff.
People sometimes ask me how I found out I had Cushing’s Disease. Theoretically, it was easy. In practice, it was very difficult.
In 1983 I came across a little article in the Ladies Home Journal which said: “If you have these symptoms…”
I found the row with my symptoms and the answer read “…ask your doctor about Cushing’s”.
After that article, I started reading everything I could on Cushing’s, I bought books that mentioned Cushing’s. I asked and asked my doctors for many years and all of them said that I couldn’t have it. It was too rare. I was rejected each time.
Due to all my reading at the library, I was sure I had Cushing’s but no one would believe me. My doctors would say that Cushing’s Disease is too rare, that I was making this up and that I couldn’t have it.
In med school, student doctors are told “When you hear hoofbeats, think horses, not zebras“.
According to Wikipedia: “Zebra is a medical slang term for a surprising diagnosis. Although rare diseases are, in general, surprising when they are encountered, other diseases can be surprising in a particular person and time, and so “zebra” is the broader concept.
The term derives from the aphorism “When you hear hoofbeats behind you, don’t expect to see a zebra”, which was coined in a slightly modified form in the late 1940s by Dr. Theodore Woodward, a former professor at the University of Maryland School of Medicine in Baltimore. Since horses are the most commonly encountered hoofed animal and zebras are very rare, logically you could confidently guess that the animal making the hoofbeats is probably a horse. By 1960, the aphorism was widely known in medical circles.”
So, doctors typically go for the easily diagnosed, common diseases. Just because something is rare doesn’t mean that no one gets it. We shouldn’t be dismissed because we’re too hard to diagnose.
When I was finally diagnosed in 1987, 4 years later, it was only because I started bleeding under the skin. My husband made circles around the outside perimeter each hour with a marker so my leg looked like a cut log with rings.
When I went to my Internist the next day he was shocked at the size of the rings. He now thought I had a blood disorder so he sent me to a Hematologist/Oncologist.
Fortunately, that new doctor ran a twenty-four-hour urine test and really looked at me and listened to me. Both he and his partner recognized that I had Cushing’s but, of course, couldn’t do anything further with me. They packed me off to an endo where the process started again.
My final diagnosis was in October 1987. Quite a long time to simply “…ask your doctor about Cushing’s”.
Looking back, I can see Cushing’s symptoms much earlier than 1983. But, that ‘s for a different post.
Interview with Alicia, a Cushing’s Message Board member who is still testing. Alicia writes “But my life has changed significantly since my last interview, and I could talk about losing my job and applying for Social Security at such a young age. And the issues about self-esteem tied to a career, and risk of depression and isolation. Let me know…will be right after my disability medical screening, I should have lots to talk about!”
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People often ask me how I found out I had Cushing’s Disease. Theoretically, it was easy. In practice, it was very difficult.
In 1983 I came across a little article in the Ladies Home Journal which said: “If you have these symptoms…”
I found the row with my symptoms and the answer read “…ask your doctor about Cushing’s”.
After that article, I started reading everything I could on Cushing’s, I bought books that mentioned Cushing’s. I asked and asked my doctors for many years and all of them said that I couldn’t have it. It was too rare. I was rejected each time.
Due to all my reading at the library, I was sure I had Cushing’s but no one would believe me. My doctors would say that Cushing’s Disease is too rare, that I was making this up and that I couldn’t have it.
In med school, student doctors are told “When you hear hoofbeats, think horses, not zebras“.
According to Wikipedia: “Zebra is a medical slang term for a surprising diagnosis. Although rare diseases are, in general, surprising when they are encountered, other diseases can be surprising in a particular person and time, and so “zebra” is the broader concept.
The term derives from the aphorism “When you hear hoofbeats behind you, don’t expect to see a zebra”, which was coined in a slightly modified form in the late 1940s by Dr. Theodore Woodward, a former professor at the University of Maryland School of Medicine in Baltimore. Since horses are the most commonly encountered hoofed animal and zebras are very rare, logically you could confidently guess that the animal making the hoofbeats is probably a horse. By 1960, the aphorism was widely known in medical circles.”
So, doctors typically go for the easily diagnosed, common diseases. Just because something is rare doesn’t mean that no one gets it. We shouldn’t be dismissed because we’re too hard to diagnose.
When I was finally diagnosed in 1987, 4 years later, it was only because I started bleeding under the skin. My husband made circles around the outside perimeter each hour with a marker so my leg looked like a cut log with rings.
When I went to my Internist the next day he was shocked at the size of the rings. He now thought I had a blood disorder so he sent me to a Hematologist/Oncologist.
Fortunately, that new doctor ran a twenty-four-hour urine test and really looked at me and listened to me. Both he and his partner recognized that I had Cushing’s but, of course, couldn’t do anything further with me. They packed me off to an endo where the process started again.
My final diagnosis was in October, 1987. Quite a long time to simply “…ask your doctor about Cushing’s”.
Looking back, I can see Cushing’s symptoms much earlier than 1983. But, that ‘s for a different post…
Guest Question from the message boards: Low TSH, Low FT4, buffalo hump and many other symptoms
People often ask me how I found out I had Cushing’s Disease. Theoretically, it was easy. In practice, it was very difficult.
In 1983 I came across a little article in the Ladies Home Journal which said: “If you have these symptoms…”
I found the row with my symptoms and the answer read “…ask your doctor about Cushing’s”.
After that article, I started reading everything I could on Cushing’s, I bought books that mentioned Cushing’s. I asked and asked my doctors for many years and all of them said that I couldn’t have it. It was too rare. I was rejected each time.
Due to all my reading at the library, I was sure I had Cushing’s but no one would believe me. My doctors would say that Cushing’s Disease is too rare, that I was making this up and that I couldn’t have it.
In med school, student doctors are told “When you hear hoofbeats, think horses, not zebras“.
According to Wikipedia: “Zebra is a medical slang term for a surprising diagnosis. Although rare diseases are, in general, surprising when they are encountered, other diseases can be surprising in a particular person and time, and so “zebra” is the broader concept.
The term derives from the aphorism “When you hear hoofbeats behind you, don’t expect to see a zebra”, which was coined in a slightly modified form in the late 1940s by Dr. Theodore Woodward, a former professor at the University of Maryland School of Medicine in Baltimore. Since horses are the most commonly encountered hoofed animal and zebras are very rare, logically you could confidently guess that the animal making the hoofbeats is probably a horse. By 1960, the aphorism was widely known in medical circles.”
So, doctors typically go for the easily diagnosed, common diseases. Just because something is rare doesn’t mean that no one gets it. We shouldn’t be dismissed because we’re too hard to diagnose.
When I was finally diagnosed in 1987, 4 years later, it was only because I started bleeding under the skin. My husband made circles around the outside perimeter each hour with a marker so my leg looked like a cut log with rings.
When I went to my Internist the next day he was shocked at the size of the rings. He now thought I had a blood disorder so he sent me to a Hematologist/Oncologist.
Fortunately, that new doctor ran a twenty-four-hour urine test and really looked at me and listened to me. Both he and his partner recognized that I had Cushing’s but, of course, couldn’t do anything further with me. They packed me off to an endo where the process started again.
My final diagnosis was in October, 1987. Quite a long time to simply “…ask your doctor about Cushing’s”.
Looking back, I can see Cushing’s symptoms much earlier than 1983. But, that ‘s for a different post…
Interview with Alicia, a Cushing’s Message Board member who is still testing. Alicia writes “But my life has changed significantly since my last interview, and I could talk about losing my job and applying for Social Security at such a young age. And the issues about self-esteem tied to a career, and risk of depression and isolation. Let me know…will be right after my disability medical screening, I should have lots to talk about!”
HOME | Sitemap | Adrenal Crisis! | Abbreviations | Glossary | Forums | Donate | Bios | Add Your Bio | Add Your Doctor | MemberMap | CushieWiki
People often ask me how I found out I had Cushing’s Disease. Theoretically, it was easy. In practice, it was very difficult.
In 1983 I came across a little article in the Ladies Home Journal which said: “If you have these symptoms…”
I found the row with my symptoms and the answer read “…ask your doctor about Cushing’s”.
After that article, I started reading everything I could on Cushing’s, I bought books that mentioned Cushing’s. I asked and asked my doctors for many years and all of them said that I couldn’t have it. It was too rare. I was rejected each time.
Due to all my reading at the library, I was sure I had Cushing’s but no one would believe me. My doctors would say that Cushing’s Disease is too rare, that I was making this up and that I couldn’t have it.
According to Wikipedia: “Zebra is a medical slang term for a surprising diagnosis. Although rare diseases are, in general, surprising when they are encountered, other diseases can be surprising in a particular person and time, and so “zebra” is the broader concept.
The term derives from the aphorism “When you hear hoofbeats behind you, don’t expect to see a zebra”, which was coined in a slightly modified form in the late 1940s by Dr. Theodore Woodward, a former professor at the University of Maryland School of Medicine in Baltimore. Since horses are the most commonly encountered hoofed animal and zebras are very rare, logically you could confidently guess that the animal making the hoofbeats is probably a horse. By 1960, the aphorism was widely known in medical circles.”
So, doctors typically go for the easily diagnosed, common diseases. Just because something is rare doesn’t mean that no one gets it. We shouldn’t be dismissed because we’re too hard to diagnose.
When I was finally diagnosed in 1987, 4 years later, it was only because I started bleeding under the skin. My husband made circles around the outside perimeter each hour with a marker so my leg looked like a cut log with rings.
When I went to my Internist the next day he was shocked at the size of the rings. He now thought I had a blood disorder so he sent me to a Hematologist/Oncologist.
Fortunately, that new doctor ran a twenty-four-hour urine test and really looked at me and listened to me. Both he and his partner recognized that I had Cushing’s but, of course, couldn’t do anything further with me. They packed me off to an endo where the process started again.
My final diagnosis was in October, 1987. Quite a long time to simply “…ask your doctor about Cushing’s”.
Looking back, I can see Cushing’s symptoms much earlier than 1983. But, that ‘s for a different post…
I have been struggling with progressive symptoms of extreme fatigue, muscle weakness, increased anxiety and depression, rage, acne, weight gain, and sweating just doing small tasks over the last 3 to 4 years. I also have a very hard time controlling my body temperature. I get really cold, turn the heat up, get really hot, turn the heat down, over and over throughout the day. (I’m 36 years old) If I’m sitting I’m freezing. If I’m up moving I’m on fire and sweating. Just such dramatic ends of the spectrum. Anyway, for a long time my GP was only checking my TSH. (Hypothyroidism runs strong in my family). My TSH has always been on the low end of normal. I was feeling so awful, I insisted they were missing something and asked them to check my FT4. That has also always ran at the lower end of normal. They treat me with Levothyroxine to try to increase my FT4, but in doing so, cause my TSH to go even lower. I googled what it meant to have a Low TSH with a low FT4 and it said it could be hypothyroidism caused by a pituitary tumor. I then came across Cushing’s which started showing pictures of the classic “buffalo hump” and my jaw hit the floor.
About a month ago, I caught myself in profile in my mirror and was completely taken aback by my appearance. My husband and I aren’t sure how long my neck has looked this way. Either way I was just wondering what others thoughts were. My GP has ordered some kind of cortisol test thus far that I’ll go for tomorrow. I would also like an MRI of my pituitary and possibly adrenals. I’m just tired of sleeping my life away and have been searching for answers for so long. Please let me know what you think of the hump.
Are there other causes for this appearance? Thanks