scholarly journals GERM-22. DECISION-MAKING MANAGEMENT GUIDELINE FOR CHILDREN AND YOUNG PEOPLE UP TO 19 YEARS (CYP) PRESENTING WITH IDIOPATHIC PITUITARY STALK THICKENING (iTPS) AND/OR IDIOPATHIC CENTRAL DIABETES INSIPIDUS (iCDI)

2018 ◽  
Vol 20 (suppl_2) ◽  
pp. i88-i88
Author(s):  
Manuela Cerbone ◽  
Johannes Visser ◽  
Chloe Bulwer ◽  
Ashraf Ederies ◽  
Kirtana Vallabhaneni ◽  
...  
2011 ◽  
Vol 96 (9) ◽  
pp. E1352-E1360 ◽  
Author(s):  
Isis Marchand ◽  
Mohamed Aziz Barkaoui ◽  
Catherine Garel ◽  
Michel Polak ◽  
Jean Donadieu ◽  
...  

Abstract Context: Isolated central diabetes insipidus (CDI) can be the first manifestation of Langerhans cell histiocytosis (LCH), creating diagnostic dilemmas such as dysgerminoma and other inflammatory lesions. Method: In 2010, the French national LCH registry had enrolled 1236 LCH patients under 18 yr of age. Isolated CDI was the initial presentation of LCH in 26 patients. We reviewed their clinical and magnetic resonance imaging (MRI) features. Results: Median age at the diagnosis of CDI was 9.6 yr (1.8–16.3), and median follow-up after CDI diagnosis was 9.9 yr (3.5–26.6). In addition to CDI, two patients had visual field defects, four had secondary amenorrhea, and 11 had anterior pituitary deficiency. Cerebral imaging (including computed tomography in two cases), performed in 22 patients within 3 months of CDI diagnosis, showed pituitary stalk thickening in 14 patients, which was moderate (3.0–7 mm) in nine cases and marked (>7 mm) in five cases. In eight cases, the lesion extended to the floor of the third ventricle. One child with LCH presented with a mild enlarged sellar content. During follow-up, 22 patients developed extrapituitary involvement, mainly of bone (n = 15), lung (n = 9), and skin (n = 9). Pituitary biopsy was performed in eight cases and was conclusive in six cases. Conclusions: Pituitary stalk thickening can be observed in LCH as well as lesions extending to the floor of the third ventricle. In all cases but one, the intrasellar content was not enlarged. Long-term follow-up with close attention to bone, skin, and lung disorders may lead to the diagnosis of LCH.


2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Shabana Kalladi Puthanpurayil ◽  
Ahsan Uddin ◽  
Peter Matthew Gerrits

Abstract Case Description A 7-year-old previously healthy female presented with a 1-month history of tiredness, excessive thirst and increased urinary frequency. Initial studies showed an elevated serum osmolality with relatively dilute urine. She underwent a water deprivation study which confirmed central diabetes insipidus (CDI). An MRI of the brain was obtained which showed markedly thickened and homogeneously enhancing pituitary stalk thickening (17mm craniocaudal x10 mm anteroposterior diameter). Workup did not reveal any signs suggestive of Langerhan’s cell histiocytosis; a skin biopsy and bone survey were normal. A pituitary stalk biopsy was scheduled, however direct endoscopic visualization of the pituitary stalk was normal, so the procedure was aborted. A repeat MRI 7 weeks later showed complete resolution of the stalk thickening. An MRI done 4 months later again showed normal anterior pituitary and normal pituitary stalk, with persistent absent posterior bright spot. She remains on desmopressin, and anterior pituitary functions have been normal to date. Discussion CDI in children can be due to infectious, neoplastic, traumatic or genetic processes that disrupt the hypothalamus or pituitary stalk. One third of children with CDI present with pituitary stalk thickening (PST) on initial evaluation with MRI. There are wide variations in the degree of PST. Previous studies have shown that the degree of PST is different depending on the underlying etiology. Furthermore, regression of PST has been observed in many cases of CDI with PST which has been attributed to idiopathic or autoimmune process (infundibulohypophysitis). Most studies have demonstrated that PST > 4 mm is unlikely to regress and may be more likely to progress with eventual diagnosis of a neoplastic process such as germinoma or Langerhan’s cell histiocytosis. Based on review of the literature, the earliest resolution of PST was in 3 months in a patient who received steroid therapy at diagnosis. [1] Conclusion Our case illustrates that in children with central diabetes insipidus, isolated pituitary stalk thickening may resolve in as short a period as 7 weeks. While ongoing evaluation is warranted with serial pituitary imaging, unnecessary invasive procedures may be avoided in patients without evidence of other underlying anatomic pathology. Anterior pituitary function requires initial and continued surveillance. References 1. Shaefers J et al. Clinical presentation and outcome of children with central diabetes insipidus associated with a self-limited or transient pituitary stalk thickening, diagnosed as infundibuloneurohypophysitis. Clin Endocrinol (Oxf). 2017 Aug;87(2):171-176. doi: 10.1111/cen.13362. Epub 2017 Jun 5.


Author(s):  
Giuseppa Patti ◽  
Flavia Napoli ◽  
Daniela Fava ◽  
Emilio Casalini ◽  
Natascia Di Iorgi ◽  
...  

Abstract Central diabetes insipidus (CDI) is a complex disorder in which large volumes of dilute urine are excreted due to arginine-vasopressin deficiency, and it is caused by a variety of disorders affecting the hypothalamic-posterior pituitary network. The differential diagnosis is challenging and requires a detailed medical history, physical examination, biochemical approach, imaging studies and, in some cases, histological confirmation. Magnetic resonance imaging is the gold standard method for evaluating congenital or acquired cerebral and pituitary stalk lesions. Pituitary stalk size at presentation could be normal, but it may change over time, depending on the underlying condition, while other brain areas or organs may become involved during follow up. Early diagnosis and treatment are crucial in order to avoid central nervous system damage, germ cell tumor dissemination, and to minimize complications of multiple pituitary hormone defects. We provide a practical update on the diagnosis and management of patients with CDI and highlight several pitfalls that may complicate the differential diagnosis of conditions presenting with polyuria and polydipsia. The need for a careful and close follow-up of patients with “apparently” idiopathic CDI is particularly emphasized, because the underlying condition may be recognized over time. The clinical scenario that we outline at the beginning of this article represents the basis for the discussion about how the etiological diagnosis of CDI can be overlooked, and demonstrates how a water intake and urine output improvement can be a sign of progressive damage of both hypothalamus and anterior pituitary gland with associated pituitary hormonal deficiencies.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Wendong Liu ◽  
Limin Wang ◽  
Minghua Liu ◽  
Guimei Li

Objective. In pediatric central diabetes insipidus (CDI), etiology diagnosis and pituitary function monitoring are usually delayed. This study aimed to illustrate the importance of regular follow-up and pituitary function monitoring in pediatric CDI.Methods. The clinical, hormonal, and neuroradiological characteristics of children with CDI at diagnosis and during 1.5–2-year follow-up were collected and analyzed.Results. The study included 43 CDI patients. The mean interval between initial manifestation and diagnosis was 22.29 ± 3.67 months (range: 2–108 months). The most common complaint was polyuria/polydipsia. Causes included Langerhans cell histiocytosis, germinoma, and craniopharyngioma in 2, 5, and 4 patients; the remaining were idiopathic. No significant changes were found during the 1.5–2 years after CDI diagnosis. Twenty-three of the 43 cases (53.5%) had ≥1 anterior pituitary hormone deficiency. Isolated growth hormone deficiency was the most frequent abnormality (37.5%) and was not associated with pituitary stalk diameter. Multiple pituitary hormone deficiencies were found in 8 cases with pituitary stalk diameter > 4.5 mm.Conclusion. Diagnosis of CDI is usually delayed. CDI with a pituitary stalk diameter > 4.5 mm carries a higher risk of multiple pituitary hormone deficiencies. Long-term MRI and pituitary function follow-ups are necessary for children with idiopathic CDI.


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