Patient Demographics > Age > Adolescent/young adult
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Summary
Skeletal manifestations of primary hyperparathyroidism (pHPT) include brown tumors (BT), which are osteoclastic focal lesions often localized in the jaws. Brown tumors are a rare manifestation of pHTP in Europe and USA; however, they are frequent in developing countries, probably related to vitamin D deficiency and longer duration and severity of disease. In the majority of cases, the removal of the parathyroid adenoma is enough for the bone to remineralize, but other cases require surgery. Hyperparathyroidism in MEN1 develops early, and is multiglandular and the timing of surgery remains questionable. To our knowledge, there are no reports of BT in MEN 1 patients. We present a 29-year-old woman with MEN 1 who developed a brown tumor of the jaw 24 months after getting pregnant, while breastfeeding. Serum corrected calcium remained under 2.7 during gestation, and at that point reached a maximum of 2.82 mmol/L. Concomitant PTH was 196 pg/mL, vitamin D 13.7 ng/mL and alkaline phosphatase 150 IU/L. Bone mineral density showed osteopenia on spine and femoral neck (both T-scores = −1.6). Total parathyroidectomy was performed within two weeks, with a failed glandular graft autotransplantation, leading to permanent hypoparathyroidism. Two months after removal of parathyroid glands, the jaw tumor did not shrink; thus, finally it was successfully excised. We hypothesize that higher vitamin D and mineral requirements during maternity may have triggered an accelerated bone resorption followed by appearance of the jaw BT. We suggest to treat pHPT before planning a pregnancy in MEN1 women or otherwise supplement with vitamin D, although this approach may precipitate severe hypercalcemia.
Learning points:
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Brown tumors of the jaw can develop in MEN 1 patients with primary hyperparathyroidism at a young age (less than 30 years).
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Pregnancy and lactation might trigger brown tumors by increasing mineral and vitamin D requirements.
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Early parathyroidectomy is advisable in MEN 1 patients with primary hyperparathyroidism, at least before planning a pregnancy.
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Standard bone mineral density does not correlate with the risk of appearance of a brown tumor.
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Removal of parathyroid glands does not always lead to the shrinkage of the brown tumor, and surgical excision may be necessary.
Search for other papers by Laila Ennazk in
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Search for other papers by Ghizlane El Mghari in
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Search for other papers by Nawal El Ansari in
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Summary
Autoimmune pancreatitis is a new nosological entity in which a lymphocytic infiltration of the exocrine pancreas is involved. The concomitant onset of autoimmune pancreatitis and type 1 diabetes has been recently described suggesting a unique immune disturbance that compromises the pancreatic endocrine and exocrine functions. We report a case of type1 diabetes onset associated with an autoimmune pancreatitis in a young patient who seemed to present a type 2 autoimmune polyglandular syndrome. This rare association offers the opportunity to better understand pancreatic autoimmune disorders in type 1 diabetes.
Learning points:
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The case makes it possible to understand the possibility of a simultaneous disturbance of the endocrine and exocrine function of the same organ by one autoimmune process.
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The diagnosis of type 1 diabetes should make practitioner seek other autoimmune diseases. It is recommended to screen for autoimmune thyroiditis and celiac diseases. We draw attention to consider the autoimmune origin of a pancreatitis associated to type1 diabetes.
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Autoimmune pancreatitis is a novel rare entity that should be known as it is part of the IgG4-related disease spectrum.
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Search for other papers by Enzo Bonora in
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Summary
Vertebral osteomyelitis (or spondylodiscitis) is steadily increasing in Western countries and often results from hematogenous seeding, direct inoculation during spinal surgery, or contiguous spread from an infection in the adjacent soft tissue. We present the case of a 67-year-old white patient with type 2 diabetes who went to Hospital for high fever, back pain, and worsening of known infected ulcers in the left foot. Despite intravenous antibiotic treatment and surgical debridement of the foot infection, high fever and lower back pain continued. Bone biopsy and two consecutive blood cultures were positive for Staphylococcus aureus. A spinal magnetic resonance imaging (MRI) was performed, revealing serious osteomyelitis in L4 and L5 complicated by an epidural abscess. Contiguous or other distant focuses of infection were not identified. In this case, diabetic foot could be considered as a primary distant focus for vertebral osteomyelitis. Clinicians should consider vertebral osteomyelitis as a ‘possible’ diagnosis in patients with type 2 diabetes complicated by foot infection that is associated with fever and lower back pain.
Learning points
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Vertebral osteomyelitis is increasing in Western countries, especially in patients with type 2 diabetes.
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The primary focus of infection is the genitourinary tract followed by skin, soft tissue, endocarditis, bursitis, septic arthritis, and intravascular access.
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Diabetic foot could be a rare primary focus of infection for vertebral osteomyelitis, and, however, vertebral osteomyelitis could be a serious, albeit rare, complication of diabetic foot.
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Clinicians should keep in mind the many potential complications of diabetic foot ulcerations and consider vertebral osteomyelitis as a “possible” diagnosis in patients with type 2 diabetes and foot ulcers associated with nonspecific symptoms such as lower back pain.
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Early diagnosis and correct management of vertebral osteomyelitis are crucial to improve clinical outcomes.
Search for other papers by Jerena Manoharan in
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Search for other papers by Caroline L Lopez in
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German Cancer Consortium (DKTK), Dresden, Germany, German Cancer Research Center (DKFZ), Heidelberg, Germany, National Center for Tumor Diseases (NCT), Dresden, Germany
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German Cancer Consortium (DKTK), Dresden, Germany, German Cancer Research Center (DKFZ), Heidelberg, Germany, National Center for Tumor Diseases (NCT), Dresden, Germany
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Search for other papers by Detlef K Bartsch in
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Summary
We report about a young female who developed an unusual and an aggressive phenotype of the MEN1 syndrome characterized by the development of a pHPT, malignant non-functioning pancreatic and duodenal neuroendocrine neoplasias, a pituitary adenoma, a non-functioning adrenal adenoma and also a malignant jejunal NET at the age of 37 years. Initial Sanger sequencing could not detect a germline mutation of the MEN1 gene, but next generation sequencing and MPLA revealed a deletion of the MEN1 gene ranging between 7.6 and 25.9 kb. Small intestine neuroendocrine neoplasias (SI-NENs) are currently not considered to be a part of the phenotype of the MEN1-syndrome. In our patient the SI-NENs were detected during follow-up imaging on Ga68-Dotatoc PET/CT and could be completely resected. Although SI-NENs are extremely rare, these tumors should also be considered in MEN1 patients. Whether an aggressive phenotype or the occurrence of SI-NENs in MEN1 are more likely associated with large deletions of the gene warrants further investigation.
Learning points
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Our patient presents an extraordinary course of disease.
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Although SI-NENs are extremely rare, these tumors should also be considered in MEN1 patients, besides the typical MEN1 associated tumors.
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This case reports indicate that in some cases conventional mutation analysis of MEN1 patients should be supplemented by the search for larger gene deletions with modern techniques, if no germline mutation could be identified by Sanger sequencing.
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Summary
Secondary amenorrhoea and galactorrhoea represent a common endocrine presentation. We report a case of an oestrogen-producing juvenile granulosa cell tumour (JGCT) of the ovary in a 16-year-old post-pubertal woman with hyperprolactinaemia amenorrhoea and galactorrhoea which resolved following surgical resection of the tumour. This patient presented with a 9-month history of secondary amenorrhoea and a 2-month history of galactorrhoea. Elevated serum prolactin at 7081 mIU/l and suppressed gonadotropins (LH <0.1 U/l; FSH <0.1 U/l) were detected. Serum oestradiol was significantly elevated at 7442 pmol/l with undetectable β-human chorionic gonadotropin. MRI showed a bulky pituitary with no visible adenoma. MRI of the abdomen showed a 4.8 cm mass arising from the right ovary with no evidence of metastatic disease. Serum inhibin B was elevated at 2735 ng/l. A right salpingo-oophorectomy was performed, and histology confirmed the diagnosis of a JGCT, stage International Federation of Gynaecology and Obstetrics 1A. Immunohistochemical staining for prolactin was negative. Post-operatively, oestrogen and prolactin levels were normalised, and she subsequently had a successful pregnancy. In summary, we present a case of an oestrogen-secreting JGCT with hyperprolactinaemia manifesting clinically with galactorrhoea and secondary amenorrhoea. We postulate that observed hyperprolactinaemia was caused by oestrogenic stimulation of pituitary lactotroph cells, a biochemical state analogous to pregnancy. To the best of our knowledge, this is the first report of hyperprolactinaemia as a result of excessive oestrogen production in the context of a JGCT.
Learning points
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Hyperprolactinaemia with bilateral galactorrhoea and secondary amenorrhoea has a wide differential diagnosis and is not always caused by a prolactin secreting pituitary adenoma.
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Significantly elevated serum oestradiol levels in the range seen in this case, in the absence of pregnancy, are indicative of an oestrogen-secreting tumour.
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JGCTs are rare hormonally active ovarian neoplasms mostly secreting steroid hormones.
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Serum inhibin can be used as a granulosa cell-specific tumour marker.
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JGCTs have an excellent prognosis in the early stages of the disease.
Search for other papers by Luísa Correia Martins in
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Summary
Alternating between hyper- and hypo-thyroidism may be explained by the simultaneous presence of both types of TSH receptor autoantibodies (TRAbs) – thyroid stimulating autoantibodies (TSAbs) and TSH blocking autoantibodies (TBAbs). It is a very rare condition, particulary in the pediatric age. The clinical state of these patients is determined by the balance between TSAbs and TBAbs and can change over time. Many mechanisms may be involved in fluctuating thyroid function: hormonal supplementation, antithyroid drugs and levels of TSAbs and TBAbs. Frequent dose adjustments are needed in order to achieve euthyroidism. A definitive therapy may be necessary to avoid switches in thyroid function and frequent need of therapeutic changes. We describe an immune-mediated case of oscillating thyroid function in a 13-year-old adolescent. After a short period of levothyroxine treatment, the patient switched to a hyperthyroid state that was only controlled by adding an antithyroid drug.
Learning points
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Autoimmune alternating hypo- and hyper-thyroidism is a highly uncommon condition in the pediatric age.
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It may be due to the simultaneous presence of both TSAbs and TBAbs, whose activity may be estimated in vitro through bioassays.
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The clinical state of these patients is determined by the balance between TSAbs and TBAbs and can change over time.
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The management of this condition is challenging, and three therapeutic options could be considered: I-131 ablation, thyroidectomy or pharmacological treatment (single or double therapy).
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Therapeutic decisions should be taken according to clinical manifestations and thyroid function tests, independent of the bioassays results.
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A definitive treatment might be considered due to the frequent switches in thyroid function and the need for close monitoring of pharmacological treatment. A definitive treatment might be considered due to the frequent switches in thyroid function and the need for close monitoring of pharmacological treatment.
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Search for other papers by Nalin Wickramasuriya in
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Summary
Estrogen is used to induce puberty in peripubertal girls with hypogonadism. Although both synthetic and natural forms are available, along with different routes of administration, in the UK oral ethinyl estradiol and the low-dose oral contraceptive pill are commonly used as hormone replacement therapy for practical reasons. We present five peripubertal girls (aged 12.5–14.9 years) with hypogonadism (two with primary hypogonadism due to Turner syndrome and three with central (secondary) hypogonadism as part of multiple pituitary hormone deficiency) who for a variety of reasons have received milligram doses of estradiol (E2) in error for between 6 weeks and 6 months, instead of the expected microgram doses of ethinyl estradiol. Although there are no direct comparisons in peripubertal girls between synthetic and natural estrogens, all girls had vaginal bleeding whilst receiving the milligram doses and have ended up with reduced final heights, below the 9th centile in 1 and below the 2nd centile in 4. Whilst reduction in final height may be part of the underlying condition (especially in Turner syndrome) the two girls with height predictions performed prior to receiving the estrogen overdose have not achieved their predicted height. Estrogen is one of the few drugs which is available in both milligram and microgram formulations. Clinicians need to be alert to the possibility of patients receiving the wrong formulation and dosage in error.
Learning points
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Girls with primary and secondary gonadal failure require assistance with pubertal induction.
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Although several different formulations and route of administration are available, for practical reasons, the majority of girls in the UK receive oral ethinyl estradiol.
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Estrogen preparations are available in both milligram and microgram formulations, with potential for receiving the wrong dose.
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Girls receiving milligram rather than microgram preparations all had vaginal bleeding and a short final height.
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Summary
Giant prolactinomas are rare tumours of the pituitary, which typically exceed 40 mm in their largest dimension. Impairment of higher cognitive function has been noted post-operatively after transcranial surgery and as a long-term consequence of the radiotherapy treatment. However, there has been little that is reported on such disturbances in relation to the tumour per se, and to our knowledge, there has been none in terms of responsivity to dopamine agonist therapy and shrinkage in these tumours. We present a case of successful restoration of severely impaired cognitive functions achieved safely after significant adenoma involution with medical treatment alone.
Learning points
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Giant prolactinomas can be present with profound cognitive defects.
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Dopamine agonists remain in the mainstay first-line treatment of giant prolactinomas.
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Mechanisms of the reversible cognitive impairment associated with giant prolactinoma treatment appear to be complex and remain open to further studies.
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Young patients with giant prolactinomas mandate genetic testing towards familial predisposition.
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Search for other papers by Fernando Mazzilli in
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Summary
We report the case of a 19-year-old boy, presenting several congenital malformations (facial dysmorphisms, cardiac and musculoskeletal abnormalities), mental retardation, recurrent respiratory infections during growth and delayed puberty. Although previously hospitalised in other medical centres, only psychological support had been recommended for this patient. In our department, genetic, biochemical/hormonal and ultrasound examinations were undertaken. The karyotype was 49,XXXXY, a rare aneuploidy with an incidence of 1/85 000–100 000, characterised by the presence of three extra X chromosomes in phenotypically male subjects. The hormonal/biochemical profile showed hypergonadotropic hypogonadism, insulin resistance and vitamin D deficiency. The patient was then treated with testosterone replacement therapy. After 12 months of treatment, we observed the normalisation of testosterone levels. There was also an increase in pubic hair growth, testicular volume and penis size, weight loss, homeostatic model assessment index reduction and the normalisation of vitamin D values. Moreover, the patient showed greater interaction with the social environment and context.
Learning points
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In cases of plurimalformative syndrome, cognitive impairment, recurrent infections during growth and, primarily, delayed puberty, it is necessary to ascertain as soon as possible whether the patient is suffering from hypogonadism or metabolic disorders due to genetic causes. In our case, the diagnosis of hypogonadism, and then of 49,XXXXY syndrome, was unfortunately made only at the age of 19 years.
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The testosterone replacement treatment, even though delayed, induced positive effects on: i) development of the reproductive system, ii) regulation of the metabolic profile and iii) interaction with the social environment and context.
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However, earlier and timely hormonal replacement treatment could probably have improved the quality of life of this subject and his family.
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Search for other papers by Ahlam Al Ameri in
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Summary
Combined17α-hydroxylase/17,20-lyase deficiency is a rare cause of congenital adrenal hyperplasia and hypogonadism. Hypertension and hypokalemia are essential presenting features. We report an Arab family with four affected XX siblings. The eldest presented with abdominal pain and was diagnosed with a retroperitoneal malignant mixed germ cell tumour. She was hypertensive and hypogonadal. One sibling presented with headache due to hypertension while the other two siblings were diagnosed with hypertension on a routine school check. A homozygous R96Q missense mutation in P450c17 was detected in the index case who had primary amenorrhea and lack of secondary sexual characters at 17 years. The middle two siblings were identical twins and had no secondary sexual characters at the age of 14. All siblings had hypokalemia, very low level of adrenal androgens, high ACTH and high levels of aldosterone substrates. Treatment was commenced with steroid replacement and puberty induction with estradiol. The index case had surgical tumor resection and chemotherapy. All siblings required antihypertensive treatment and the oldest remained on two antihypertensive medications 12 years after diagnosis. Her breast development remained poor despite adequate hormonal replacement. Combined 17α-hydroxylase/17,20-lyase deficiency is a rare condition but might be underdiagnosed. It should be considered in young patients presenting with hypertension, particularly if there is a family history of consanguinity and with more than one affected sibling. Antihypertensive medication might continue to be required despite adequate steroid replacement. Breast development may remain poor in mutations causing complete form of the disease.
Learning points
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Endocrine hypertension due to rarer forms of CAH should be considered in children and adolescents, particularly if more than one sibling is affected and in the presence of consanguinity.
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17α-hydroxylase/17,20-lyase deficiency is a rare form of CAH but might be underdiagnosed.
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Blood pressure measurement should be carried out in all females presenting with hypogonadism.
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Anti-hypertensive medications might be required despite adequate steroid replacement.
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Initial presenting features might vary within affected members of the same family.
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Adverse breast development might be seen in the complete enzyme deficiency forms of the disease.