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Summary
Hypoglycemia is one of the paraneoplastic syndrome manifestations that arise from primary and secondary liver cancer. Hypoglycemia usually presents in the late stage of the disease and indicates a poor prognosis. This case series displays the characteristics profile of patients with primary and secondary liver cancer who are presented with hypoglycemia in a tertiary referral hospital in Indonesia. The study included 41 liver cancer patients who were presented with hypoglycemia. Hepatocellular carcinoma was diagnosed in 51.2% of patients, metastatic liver disease in 14.6% of patients, and undiagnosed liver cancer in 34.1% of patients. The mean age was 47.7 years with male predominance (65.9%). Jaundice was found in 58.5% and hepatomegaly in 70.7% of patients. The mean (± S.D.) initial blood glucose was 42.15 ± 17.11 mg/dL and the Child–Pugh score was 9.93 ± 2.11. Based on imaging, tumor diameter was 12.6 ± 6.9 cm, multiple (61%), and involving both lobes (61%). Treatments for hypoglycemia included oral/enteral feeding, intravenous dextrose, and steroids. No treatment was given for the cancer because all patients were in an advanced stage. The treatment resulted in 41.5% blood glucose being controlled, 56.1% refractory, and 2.4% persistent. Mortality was 70.7% and in average occurred 5.76 ± 4.99 days after hypoglycemia. The mainstay of treatment in these cases is treating the tumor with cytoreduction. However, it was difficult to do cytoreduction because the tumor was already in an advanced stage. Beneficial supportive treatments for maintaining normal blood glucose are frequent meals, dextrose infusion, steroids, and glucagon.
Learning points
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Hypoglycemia in liver cancer occurs due to the failure of the liver to fulfill body glucose demand because the liver parenchyma has been largely replaced by the tumor, in addition to the high production of insulin growth factor (IGF).
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Hypoglycemia is often caused by islet cell and non-islet cell tumors, with a higher occurrence in non-islet cell tumors due to paraneoplastic syndrome and the high metabolic requirements of the tumor.
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The mainstay of NICTH treatment is treating the tumor with cytoreduction. However, in an advanced stage, cytoreduction therapy is often challenging to conduct. Beneficial supportive treatments for controlling blood glucose are frequent meals, dextrose infusion, and the injection of steroids and glucagon.
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Steroids play a beneficial role in the treatment of persistent hypoglycemia in hepatocellular carcinoma by stimulating gluconeogenesis and increasing lipolysis. Steroids also have roles in the inhibition of peripheral glucose intake, suppression of big IGF-2 production, and modulation of the GH–IGF axis.
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Summary
At the end of the 19th century, an 18-year-old lady gave birth to a well-proportioned, though very small, son. After delivery, the mother developed a full-grown beard, whereas the son always remained of small stature. The mother developed diabetes mellitus and died, aged 59, from a complicated severe cold. The son died at the age of 91 because of chronic kidney disease. The differential diagnosis in the son is isolated growth hormone deficiency. The mother might have suffered luteoma of pregnancy, polycystic ovary syndrome (PCOS), or Sertoli–Leydig cell tumor(s). The two cases are apparently coincidental/not related in pathophysiology.
Learning points
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Hirsutism occurring directly postpartum can have several causes.
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Patients with isolated growth hormone deficiency can live a long life without the substitution of growth hormone.
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Coincidence does not necessarily imply correlation.
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In the past, patients with endocrine disorders like severe hirsutism or small stature were employed at circuses and fairs to entertain the audience as curiosities.
Ministry of National Guard – Health Affairs, Riyadh, Saudi Arabia
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Department of Paediatrics, Endocrine Division, Jeddah, Saudi Arabia
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Ministry of National Guard – Health Affairs, Riyadh, Saudi Arabia
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Ministry of National Guard – Health Affairs, Riyadh, Saudi Arabia
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Faculty of medicine, Sohag University, Egypt
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Summary
X-linked hypophosphatemic rickets (XLH), the most prevalent form of inherited hypophosphatemic rickets, is caused by loss-of-function mutations in the gene encoding phosphate-regulating endopeptidase homolog, X-linked (PHEX). This case series presents 14 cases of XLH from Gulf Cooperation Council (GCC) countries. The patients’ medical history, biochemical and radiological investigative findings, as well as treatment responses and side effects from both conventional and burosumab therapy, are described. Cases were aged 2–40 years at diagnosis. There were two male cases and 12 female cases. All cases were treated with conventional therapy which resulted in a lack of improvement in or worsening of the clinical signs and symptoms of rickets or biochemical parameters. Side effects of conventional therapy included nausea, diarrhea, abdominal pain, nephrocalcinosis, and hyperparathyroidism, which affected the patients’ quality of life and adherence to treatment. In the 10 patients treated with burosumab, there was a marked improvement in the biochemical markers of rickets, with a mean increase in serum phosphate of +0.56 mmol/L and tubular maximum phosphate reabsorption (TmP) to glomerular filtration rate (GFR) ratio (TmP/GFR) of +0.39 mmol/L at 12 months compared to baseline. Furthermore, a mean decrease in serum alkaline phosphatase (ALP) of −80.80 IU/L and parathyroid hormone (PTH) of −63.61 pmol/L at 12 months compared to baseline was observed in these patients. Additionally, patients treated with burosumab reported reduced pain, muscle weakness, and fatigue as well as the ability to lead more physically active lives with no significant side effects of treatment.
Learning points
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Conventional therapy resulted in a suboptimal response, with a lack of improvement of clinical signs and symptoms.
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Side effects of conventional therapy included nausea, diarrhea, abdominal pain, nephrocalcinosis, and hyperparathyroidism, which affected the patients’ quality of life and adherence to treatment.
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Burosumab demonstrated marked improvements in the biochemical markers of rickets, in addition to reducing pain, muscle weakness, and fatigue.
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There were no significant side effects associated with burosumab therapy.
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Department of Pediatrics, George Washington School of Medicine, Washington, District of Columbia, USA
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Summary
Iodine nutrition is a growing issue within the USA due to newer trends of non-iodized salts. There are no recent reviews looking at the current state of iodine deficiency-induced hypothyroidism in children in the USA. We performed a retrospective chart review at our tertiary pediatric endocrine clinic; four met the diagnostic criteria for iodine deficiency defined by a low urine iodine level. We further characterized severity of disease, risk factors, goiter, thyroid labs and antibodies. All cases had significant goiter and were diagnosed within the last 2 years. One case had iodine deficiency due to no iodized salt intake along with concurrent diagnosis of developmental delay and multiple food allergies, while others involved the use of non-iodized salts. Two cases had iodine deficiency along with autoimmunity. It is critical to obtain a dietary history for all patients who present with goiter and/or hypothyroidism. There may be a need to consider reevaluating current preventative measures for iodine deficiency, especially for certain vulnerable populations such as children who do not consume iodized salt.
Learning points
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In recent decades, iodine nutrition has become a growing concern due to changing dietary patterns and food manufacturing practices.
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A dietary history is crucial to obtain in children presenting with hypothyroidism and goiter, especially in children with restrictive diets due to behavioral concerns, developmental delays, or multiple food allergies.
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Of the 12 different types of salts commercially available, only table salt contains iodine in an appropriate amount; thus, individuals using specialty salts can develop mild to moderate iodine deficiency-related thyroid disease.
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Summary
Thyroid cancer is one of the most common manifestations of Cowden syndrome, yet the syndrome is rare. The incidence of Cowden syndrome is 1 in 200,000. The diagnosis can be made clinically when patients present with a combination of symptoms such as mucocutaneous lesions with a strong personal or family history of thyroid, breast, endometrial, and colorectal cancer. A high index of suspicion is required to provide a clinical diagnosis utilizing major and minor criteria. Once a clinical diagnosis is made, genetic testing for a PTEN mutation, a tumor suppressor gene, is recommended. Cancer surveillance should be performed for those with positive genetic testing as well as those with negative genetic testing who still meet clinical diagnostic criteria. We present two cases of Cowden syndrome: one case involving an increasing number of thyroid nodules in a patient with known Cowden syndrome and another patient with a strong family history of cancer, personal history of follicular thyroid cancer, and numerous colonic polyps on screening colonoscopy. These cases demonstrate how early diagnosis of Cowden syndrome can help detect early cancer in both the patient and affected relatives.
Learning points
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Diagnosing Cowden syndrome helps pre-risk stratification for early cancer screening.
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The diagnosis of Cowden syndrome can be made with a combination of major and minor criteria: any two major criteria with or without a minor criterion; one major and one minor criterion; or three minor criteria.
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Patients who meet the diagnostic criteria for Cowden syndrome should undergo genetic screening.
Hospital Militar Central, Bogotá, Colombia
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Summary
Pancreatic dysgenesis (PD) is a rare congenital disease, with less than 100 cases reported in the literature. In most cases, patients are asymptomatic and the diagnosis is made incidentally. In this report, we present the case of two brothers with a history of intrauterine growth retardation, low birth weight, hyperglycemia, and poor weight gain. The diagnosis of PD and neonatal diabetes mellitus was made by an interdisciplinary team composed of an endocrinologist, a gastroenterologist, and a geneticist. Once the diagnosis was made, treatment with an insulin pump, pancreatic enzyme replacement therapy, and supplementation with fat-soluble vitamins was decided. The use of the insulin infusion pump facilitated the outpatient treatment of both patients.
Learning points
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Pancreatic dysgenesis is a relatively rare congenital anomaly; most of the time, patients are asymptomatic and are diagnosed incidentally.
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The diagnosis of pancreatic dysgenesis and neonatal diabetes mellitus should be made with an interdisciplinary team.
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Due to its flexibility, the use of an insulin infusion pump facilitated the management of these two patients.
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Summary
The etiology of foot drop is diverse from various diseases to mechanic injuries and includes neuropathy of the peroneal nerve. Peroneal neuropathy might also be one of the forms of diabetic neuropathy, very rarely reported as the first sign of diabetes. We describe three cases of children with newly diagnosed type 1 diabetes (TID) who developed unilateral peroneal nerve palsies and tibial nerve palsies, presenting clinically as a foot drop. In two of our cases, the symptoms of foot drop occurred shortly after starting treatment for severe diabetes ketoacidosis. In the third patient, food drop was a reason for the initial medical consultation, but eventually, TID was diagnosed. The presented cases highlight that neuropathy can be observed not only as a chronic complication of T1D, but it can also appear at the time of disease manifestation. The incorrect position of the lower limb during a keto coma may contribute to the development of neuropathy.
Learning points
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Neuropathy can be observed not only as a chronic complication of type 1 diabetes (T1D), but it can also appear at the time of disease manifestation.
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The incorrect position of the lower limb causing external pressure during a keto coma may contribute to the development of neuropathy.
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It is important to examine the glycemia in patients with acute peroneal neuropathy, as this kind of peripheral neuropathy can be associated with newly diagnosed T1D. Normalization of glycemia might lead to rapid neuronal recovery.
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Summary
Ectopic Cushing’s syndrome (ECS) is a rare disease associated with significant comorbidity. Among the causes of Cushing's syndrome, adrenocorticotropic hormone-producing extrapituitary tumours are rarely reported. This low frequency makes it difficult for the physician to acquire experience in its management.
In this report, we aimed to describe the clinical presentation, diagnostic approach and treatment modalities of 12 patients with ECS treated in a single tertiarycentre over a 17-year period. Although they can appear in different locations through the neuroendocrine system, lung tumours are the most frequently reported, as it occurs in our series. They can show different levels of aggressiveness and mild to severe clinical course. Therefore, distinguishing Cushing's disease can be challenging and sometimes requires more specific techniques such as invasive tests or no conventional imaging. Treatment includes controlling both hypercortisolism and neoplastic disease, and multidisciplinary management is recommended.
Learning points
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Ectopic Cushing's syndrome (ECS) accounts for 15% of endogenous Cushing's syndromes. Its infrequency implies that both diagnosis and treatment can be a challenge for clinicians without experience in its management.
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The most common location is the lung. Although older series reported small cell lung carcinoma (SCLC) as the main ECS-producing tumour, currently most cases are attributed to lung carcinoids.
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Low-grade tumours (lung carcinoids) present themselves with a more subtle and gradual hypercortisolism, and clinically this can be difficult to differentiate from hypercortisolism due to CD. In contrast, high-grade tumours (SCLC) show severe hypercortisolism with rapid evolution.
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The diagnostic approach is complex especially when the tumour is not previously known and the clinical presentation is subtle. Functional tests are mandatory in these cases, and nuclear medicine imaging can help when conventional imaging tests fail to identify the tumour.
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ECS treatment includes a wide variety of modalities oriented to treat both the excess of cortisol and the tumour itself. The tumour prognosis depends fundamentally on the type of adrenocorticotropic hormone-secreting tumour.
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Expert and multidisciplinary team is essential for successfully treating these complex and ill patients.
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Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, Enschede, the Netherlands
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Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, Enschede, the Netherlands
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Summary
This study compares the effects of metformin, sulfonylurea derivative (SU) and no treatment in HNF4A-MODY on glycemic control. In two patients with HNF4A-MODY, we changed the existing metformin treatment to SU derivative. The effect on the glycemic control was registered with a Freestyle Libre Flash glucose monitoring device. Each treatment period had a duration of 2 consecutive weeks, and in between, an intermediate period without medication. Data from the first 2 days after changing medications were excluded. We calculated time in range (TIR), and differences in the mean glucose level were tested with a one-way ANOVA test. The 24-h average glucose levels were significantly lower with either metformin (7.7 mmol/L; P < 0.001 and 6.3 mmol/L; P < 0.001) or gliclazide (7.6 mmol/L; P < 0.001 and 5.8 mmol/L; P < 0.001) compared to no treatment (9.4 and 8.9 mmol/L). The TIR with metformin or gliclazide was higher than without treatment (patient 1: 87 and 83 vs 61% and patient 2: 83 and 93 vs 67%). Treatment with either metformin or gliclazide effectively decreases blood glucose, rendering both drugs appropriate for treating HNF4A-MODY.
Learning points
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HNF4A-MODY has a mild phenotype.
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Blood glucose was responsive to long-term metformin treatment in HNF4A-MODY.
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Metformin and gliclazide seem appropriate treatments for HNF4A-MODY.
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Summary
Osilodrostat is a novel, orally administered cortisol synthesis inhibitor, approved in 2020 by the European Medicines Agency (EMA) for the treatment of Cushing’s syndrome in adults. A significant amount of the studies currently available in the literature focus on treatment in patients with Cushing’s disease. However, data collected from patients treated with osilodrostat in real-life settings still represents a small entity. For this reason, in this article, we will discuss two real-life cases of patients with Cushing’s disease treated with this drug. The first report is about a 35-year-old woman with an adrenocorticotrophic hormone (ACTH)-secreting adenoma. After non-curative trans-nasal-sphenoidal (TNS) surgery, due to a small remnant of the adenoma, medical therapy with osilodrostat achieved fast and effective biochemical and clinical response. During treatment, progressive increase of ACTH levels and an enlargement of the pituitary remnant were documented, with planned radiosurgical treatment. The second case reports a 32-year-old man diagnosed with Cushing’s disease in 2020, who, after surgery refusal, started osilodrostat at progressively up-titrated doses, according to 24 h urinary free cortisol levels, up to 5 mg twice a day. With osilodrostat, the patient reached biochemical and clinical control of disease until TNS surgery in October 2021, with complete remission. The first post-surgical biochemical assessment was equivocal in spite of a transient clinical hypoadrenalism, reverted after 2 months with the restoration of physiological hypothalamic-pituitary-adrenal axis (HPA) function.
Learning points
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Osilodrostat is a potent oral drug viable for Cushing’s disease as medical therapy when surgery is not feasible or remission cannot be reached.
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Osilodrostat proves to be a safe drug and its main adverse effect is hypoadrenalism, due to the adrenolytic action of the compound.
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Osilodrostat needs a very tailored approach in its clinical use because there is no correlation between the level of hypercortisolism pre-treatment and the dose required to reach disease control.
