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Malignancy-Induced Hypercalcemia-Diagnostic Challenges
Claire Hoyoux1, Jacques Lombet2, Corina Ramona Nicolescu3
1Department of Pediatric Hematology and Oncology, Centre Hospitalier Regional de la Citadelle, University of Liège, Liège, Belgium.
Frontiers in Pediatrics
|November 29, 2017
Summary
Severe hypercalcemia in children, often linked to malignancy, requires a thorough diagnostic approach. This case highlights the importance of repeated histology to confirm malignancy-induced hypercalcemia and guide urgent treatment.
Area of Science:
- Pediatric Endocrinology
- Metabolic Disorders
- Oncology
Background:
- Hypercalcemia in children is rare and presents non-specifically.
- Severe hypercalcemia is primarily associated with childhood malignancy or neonatal sepsis.
- Parathyroid hormone (PTH)-suppressed hypercalcemia necessitates a multidisciplinary approach to diagnose and manage.
Observation:
- A 3-year-old boy presented with severe, complicated, PTH-independent hypercalcemia.
- Initial symptoms, imaging, and biopsies (bone, kidney, bone marrow) were inconclusive for malignancy.
- Diagnosis of malignancy-induced hypercalcemia took 4 weeks, requiring histopathological and immunochemical confirmation.
Findings:
- Repeated histology is crucial for diagnosing malignancy-induced hypercalcemia when clinical suspicion is high.
- Prompt treatment is essential to normalize calcium levels and prevent severe complications.
Implications:
- Suggests a diagnostic strategy emphasizing repeated biopsies for suspected malignancy-induced hypercalcemia.
- Underscores the need for timely and effective interventions in pediatric hypercalcemia cases.
- Highlights the diagnostic challenges posed by severe, PTH-independent hypercalcemia in children.
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