Publication Details > Case Report Type > Unique/unexpected symptoms or presentations of a disease
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Summary
Sarcoidosis is an inflammatory, multisystem disease with an undetermined etiology. The presence of noncaseating granulomas in involved organs is a characteristic pathomorphological feature. Sarcoidosis, like a chameleon, can mimic different medical conditions. Although the lungs are most commonly involved, extrapulmonary manifestations can influence any system. The clinical course of the disease may differ. Immediate initiation of glucocorticosteroid therapy is important when critical organs are impaired. A case of a patient with sarcoidosis whose first clinical symptoms were related to diabetes insipidus (DI) was presented. The diagnosis of multiple organ sarcoidosis was delayed because of an adequate response to treatment with vasopressin. The multidisciplinary diagnostic approach validated the involvement of the pituitary gland, lungs, lymph nodes, bones, and subcutaneous tissue. The presented case emphasizes the critical importance of the multifaceted differential diagnosis of patients with DI.
Learning points
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Sarcoidosis usually affects the lung but can also be a multisystemic disease.
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The assessment of the extension of sarcoidosis remains complex.
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A multidisciplinary approach must identify all-organ involvement and initiate appropriate sarcoidosis treatment.
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Diabetes insipidus (DI) can be the first symptom of a systemic granulomatous disorder.
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In the differential diagnosis of DI, a comprehensive assessment of rare causes of endocrine disorders, including extrapulmonary sarcoidosis, should be considered.
College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Jeddah, Saudi Arabia
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Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
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Summary
Myopathy caused by thyrotoxicosis is not uncommon. Skeletal muscles are commonly involved, but dysphagia is a rare manifestation of thyrotoxicosis. We aim to raise awareness of dysphagia caused by hyperthyroidism and review similar cases in the literature. We present a case of severe dysphagia caused by hyperthyroidism. We also summarize similar case reports in the literature. Our patient is a 77-year-old man who presented with thyrotoxicosis related to Graves’ disease (GD), dysphagia to both liquid and solid food, and weight loss. Further investigations revealed severe esophageal dysphagia and a high risk for aspiration. He required the placement of a G-tube for feeding. After 8 weeks of methimazole treatment, his thyroid function normalized and his dysphagia improved significantly, leading to the removal of the feeding G-tube. We summarize 19 case reports published in the literature of hyperthyroidism leading to dysphagia. Patients with thyrotoxicosis and dysphagia are at higher risk for aspiration pneumonia and thyroid storm. Based on previous case reports, on average, approximately 3 weeks of treatment with anti-thyroidal drugs and beta-blockers is needed before patients can eat normally. We report a case of dysphagia associated with GD, which is rare and needs prompt recognition to restore euthyroid status. Dysphagia generally resolved with normalization of thyroid function.
Learning points
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Myopathy caused by thyrotoxicosis is not uncommon.
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Skeletal muscles are commonly involved, but dysphagia is a rare manifestation of thyrotoxicosis.
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Dysphagia due to hyperthyroidism resolves with normalization of thyroid function.
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Early recognition of dysphagia related to hyperthyroidism and early initiation of therapy may help reverse the dysphagia and prevent complications.
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Search for other papers by Frederick Mihm in
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Summary
We describe a case of a 47-year-old patient who presented with severe lactic acidosis, troponinemia, and acute kidney injury after receiving 8 mg of intramuscular dexamethasone for seasonal allergies in the setting of an undiagnosed epinephrine-secreting pheochromocytoma. This case was atypical, however, in that the patient exhibited only mildly elevated noninvasive measured blood pressures. Following a period of alpha-adrenergic blockade, the tumor was resected successfully. Steroid administration can precipitate pheochromocytoma crisis that may present unusually as in our patient with mild hypertension but profound lactic acidosis.
Learning points
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Steroids administered via any route can precipitate pheochromocytoma crisis, manifested by excessive catecholamine secretion and associated sequelae from vasoconstriction.
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Lack of moderate/severe hypertension on presentation detracts from consideration of pheochromocytoma as a diagnosis.
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Lactatemia after steroid administration should prompt work-up for pheochromocytoma, as it can be seen in epinephrine-secreting tumors.
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Noninvasive blood pressure measurements may be unreliable during pheochromocytoma crisis due to excessive peripheral vasoconstriction.
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Summary
A 33-year-old female presented in 2013 with left flank pain. Ultrasound and MRI pelvis showed a complex mass 9 × 7 cm arising from the left ovary suggestive of ovarian torsion. She underwent a laparoscopic cystectomy, but the patient was lost to follow-up. Three years later, she presented with abdominal distension. Ultrasound and CT scan revealed a solid left ovarian mass with ascites and multiple peritoneal metastasis. Investigations showed elevated CA 125, CA 19-9. Ovarian malignancy was suspected. She underwent total abdominal hysterectomy and bilateral salpingo-oophorectomy on November 2016. The histopathology confirmed a well-differentiated thyroid cancer of ovarian origin with features of a papillary follicular variant without evidence of ovarian cancer and the thyroglobulin (Tg) level was elevated, more than 400 consistent with the diagnosis of malignant struma ovarii. The follow-up post-surgery showed normalization of CA 125, CA 19-9 and Tg. The patient underwent total thyroidectomy on January 2017. The histology was benign excluding thyroid cancer metastases to the ovary. She was started on thyroxine suppression, following which she received two ablation doses 131iodine (131I) each 5.3 GBq. The Tg remains slightly elevated at less than 10. 131I WBS showed no residual neck uptake and no distant avid metastasis. She was planned for molecular analysis which may indicate disease severity. We describe a case of malignant struma ovarii with widespread metastatic dissemination and a good response to surgery and 131I treatment without recurrence after 5 years of follow-up. The Tg remains slightly elevated indicating minimal stable residual disease.
Learning points
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Malignant struma ovarii is a rare disease; diagnosis is difficult and management is not well defined.
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Presentation may mimic advanced carcinoma of the ovary.
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Predominant sites of metastasis are adjacent pelvic structures.
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Thyroidectomy and 131iodine therapy should be considered. The management should be similar to that of metastatic thyroid cancer.
Search for other papers by Maha Khalil Abass in
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College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
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College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
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Summary
The most frequent causes of pancreatitis classically have been known to be gallstones or alcohol. However, genetics can also play a key role in predisposing patients to both chronic and acute pancreatitis. The serine protease inhibitor Kazal type 1 (SPINK 1) gene is known to be strongly associated with pancreatitis. Patients with these underlying genetic mutations can have severe diseases with a high morbidity rate and frequent hospitalization. We report an Arab girl who presented with acute pancreatitis at the age of 7 years progressing to recurrent chronic pancreatitis over a few years. She had severe obesity from the age of 4 years and developed type 2 diabetes at the age of 12. She had a normal biliary system anatomy. Genetic analysis showed that she had combined heterozygous mutations in the SPINK1 gene (SPINK1, c.101A>G p.(Asn34Ser) and SPINK1, c.56-37T>C). Her parents were first-degree cousins, but neither had obesity. Mother was detected to have the same mutations. She had type 2 diabetes but never presented with pancreatitis. This case is the first to be reported from the Arab region with these combined mutations leading to recurrent chronic pancreatitis. It illustrates the importance of diagnosing the underlying genetic mutation in the absence of other known causes of pancreatitis. Considering the absence of pancreatitis history in the mother who did not have obesity but harboured the same mutations, we point out that severe obesity might be a triggering factor of pancreatitis in the presence of the mutations in SPINK1 gene in this child. While this is not an assumption from a single patient, we show that not all carriers of this mutation develop the disease even within the same family. Triggering factors like severe obesity might have a role in developing the disease.
Learning points
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Acute recurrent pancreatitis and chronic pancreatitis are uncommon in children but might be underdiagnosed.
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Biliary tract anomalies and dyslipidaemias are known causative factors for pancreatitis, but pancreatitis can be seen in children with intact biliary system.
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Genetic diagnosis should be sought in children with pancreatitis in the absence of known underlying predisposing factors.
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SPINK1 mutations can predispose to an early-onset severe recurrent pancreatitis and acute pancreatitis.
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Summary
Congenital lipoid adrenal hyperplasia (CLAH) is characterized by a defect in the STAR protein-encoding gene that attenuates all steroidogenesis pathways. Herein, we present the first reported case in Saudi Arabia of a 46 XY, phenotypically female infant with an unfamiliar, darkened complexion compared to the family’s skin color. Based on the clinical and biochemical findings, CLAH was diagnosed and glucocorticoid replacement therapy was initiated. As a result, we suggest that pediatricians should always investigate the possibility of adrenal insufficiency when encountering unusual dark skin.
Learning points
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Pediatricians should be prompted to rule out adrenal insufficiency in unexpectedly dark skin neonates.
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In such patients, pediatricians should not wait until the neonate develops an adrenal crisis.
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A low level of 17-hydroxyprogesterone does not always rule out the possibility of inherited adrenal gland disorders, and additional tests should be performed for early detection.
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Asia Diabetes Foundation, Shatin, Hong Kong SAR, China
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Summary
Hepatocyte nuclear factor 1β (HNF1B) gene is located on chromosome 17q12. It is a transcription factor implicated in the early embryonic development of multiple organs. HNF1B-associated disease is a multi-system disorder with variable clinical phenotypes. There are increasing reports suggesting that the 17q12 deletion syndrome should be suspected in patients with maturity-onset diabetes of the young type 5 (MODY5) due to the deletion of HNF1B gene. In contrast to classical 17q12 syndrome in childhood with neurological disorders and autism, patients with HNF1B-MODY deletion rarely had neuropsychological disorders or learning disabilities. The diagnosis of 17q12 deletion syndrome highlighted the phenotypic heterogeneity of HNF1B-MODY patients. In this study, we report the clinical course of a Thai woman with young-onset diabetes mellitus and hypertriglyceridemia as a predominant feature due to HNF1B deletion as part of the 17q12 deletion syndrome. Our findings and others suggest that hypertriglyceridemia should be considered a syndromic feature of HNF1B-MODY. Our case also highlights the need to use sequencing with dosage analyses to detect point mutations and copy number variations to avoid missing a whole deletion of HNF1B.
Learning points
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Maturity-onset diabetes of the young type 5 (MODY5) may be caused by heterozygous point mutations or whole gene deletion of HNF1B. Recent studies revealed that complete deletion of the HNF1B gene may be part of the 17q12 deletion syndrome with multi-system involvement.
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The length of the deletion can contribute to the phenotypic variability in patients with HNF1B-MODY due to whole gene deletion.
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Using next-generation sequencing alone to diagnose MODY could miss a whole gene deletion or copy number variations. Specialized detection methods such as microarray analysis or low-pass whole genome sequencing are required to accurately diagnose HNF1B-MODY as a component of the 17q12 deletion syndrome.
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Molecular diagnosis is necessary to distinguish other acquired cystic kidney diseases in patients with type 2 diabetes which could phenocopy HNF1B-MODY.
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Hypertriglyceridemia is a possible metabolic feature in patients with HNF1B-MODY due to 17q12 deletion syndrome.
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Summary
The Covid-19 vaccination has been rapidly implemented among patients with cancer. We present two cases of patients with endocrine tumours who developed lymphadenopathy following a Covid-19 vaccination. In the case of a patient with multiple endocrine neoplasia (MEN) 1 syndrome, an 18-fluorodeoxyglucose (18FDG)-PET/CT showed positive axillary lymph nodes. Further work-up with fine needle aspiration showed a reactive pattern following a Covid-19 vaccination in the ipsilateral arm shortly before the 18FDG-PET/CT. A second patient, in follow-up for thyroid cancer, developed clinical supraclavicular lymphadenopathy after a Covid-19 vaccination. Follow-up ultrasound proved the lesion to be transient. These cases demonstrate lymphadenopathy in response to a Covid-19 vaccination in two patients susceptible to endocrine tumours and metastatic disease. With growing evidence about the pattern and occurrence of lymphadenopathy after mRNA Covid-19 vaccination, recommendations for scheduling and interpretation of imaging among cancer patients should be implemented to reduce equivocal findings, overdiagnosis, and overtreatment, while maintaining a good standard of care in oncological follow-up.
Learning points
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Reactive lymphadenopathy is very common after an mRNA vaccination against Covid-19 and should be part of the differential diagnosis in patients with endocrine tumours who recently received a Covid-19 mRNA vaccination and present with an ipsilateral lymphadenopathy.
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A good vaccine history is essential in assessing the risk for lymphadenopathy and if possible, screening imaging in patients with endocrine tumours should be postponed at least 6 weeks after the previous vaccination.
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For now, a multidisciplinary care approach is recommended to determine the necessary steps in the diagnostic evaluation of lymphadenopathy in the proximity of a Covid-19 vaccination.
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Summary
Congenital isolated adrenocorticotrophic hormone (ACTH) deficiency due to T-box transcription factor-19 (TBX19 mutation) (MIM 201400; ORPHA 199296) usually presents in the neonatal period with severe hypoglycemia, seizures, and sometimes prolonged cholestatic jaundice. We report a case with an unusual presentation that delayed the diagnosis. A 9-month-old female patient with no relevant personal history was admitted to the emergency department due to a hypoglycemic seizure in the context of acute gastroenteritis. There was rapid recovery after glucose administration. At age 4, she presented with tonic-clonic seizures, fever, and gastrointestinal symptoms and came to need support in an intensive care unit. Low serum cortisol was documented and hydrocortisone was initiated. After normalization of inflammatory parameters, the patient was discharged with hydrocortisone. The genetic investigation was requested and compound heterozygous mutations in TBX19 were detected. This is a rare case of presentation of TBX19 mutation outside the neonatal period and in the setting of acute disease, which presented a diagnostic challenge.
Learning points
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Congenital isolated adrenocorticotrophic hormone deficiency due to TBX19 mutation usually presents with neonatal hypoglycemia and prolonged cholestatic jaundice.
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An uneventful neonatal period, however, does not exclude the diagnosis as the disease may be asymptomatic at this stage.
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In the context of idiopathic hypoglycemia, even in the context of acute disease, hypocortisolism must always be excluded.
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Genetic evaluation should be performed in cases of congenital central hypocortisolism to allow proper counselling.
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Department of Neurosurgery, Royal Melbourne Hospital, Melbourne, Victoria, Australia
Peter McCallum Cancer Centre, Department of Oncology, Melbourne, Victoria, Australia
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School of Medicine, University of Notre Dame, Sydney, New South Wales, Australia
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Summary
Thyrotropinomas are an uncommon cause of hyperthyroidism and are exceedingly rarely identified during pregnancy, with limited evidence to guide management. Most commonly they present as macroadenomas and may cause symptoms of mass effect including headache, visual field defects and hypopituitarism. We present a case of a 35-year-old woman investigated for headaches in whom a 13 mm thyrotropinoma was found. In the lead-up to planned trans-sphenoidal surgery (TSS), she spontaneously conceived and surgery was deferred, as was pharmacotherapy, at her request. The patient was closely monitored through her pregnancy by a multi-disciplinary team and delivered without complication. Pituitary surgery was performed 6 months post-partum. Isolated secondary hypothyroidism was diagnosed postoperatively and replacement thyroxine was commenced. Histopathology showed a double lesion with predominant pituitary transcription factor-1 positive, steroidogenic factor negative plurihormonal adenoma and co-existent mixed thyroid-stimulating hormone, growth hormone, lactotroph and follicle-stimulating hormone staining with a Ki-67 of 1%. This case demonstrates a conservative approach to thyrotropinoma in pregnancy with a successful outcome. This highlights the need to consider the timing of intervention with careful consideration of risks to mother and fetus.
Learning points
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Thyrotropinomas are a rare cause of secondary hyperthyroidism. Patients may present with hyperthyroidism or symptoms of mass effect, including headaches or visual disturbance.
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Thyrotropinoma in pregnancy presents a number of pituitary-related risks including pituitary apoplexy and compression of local structures.
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Hyperthyroidism in pregnancy raises the risk of complications including spontaneous abortion, preeclampsia, low birthweight and premature labour.
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Timing of medical and surgical therapies must be carefully considered. A conservative approach requires careful monitoring in case emergent intervention is required.