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Mediastinal lipomatosis: a complication of high dose steroid therapy in children
L W Shukla1, J A Katz, M L Wagner
1Department of Radiology, Texas Children's Hospital, Houston.
Insights
Mediastinal lipomatosis, a rare condition in children, can occur after high-dose steroid use in pediatric patients undergoing bone marrow transplants. Early diagnosis is crucial for managing this fatty mediastinal enlargement.
Area of Science:
- Pediatric Oncology
- Hematology
- Radiology
Background:
- Mediastinal lipomatosis, characterized by fatty accumulation in the mediastinum, is a recognized cause of mediastinal enlargement primarily documented in adults.
- This condition is often associated with prolonged high-dose corticosteroid therapy (typically >60 mg daily).
Observation:
- A rare case of mediastinal lipomatosis is presented in a 9-year-old male patient.
- The patient underwent bone marrow transplantation for acute myelogenous leukemia and subsequently received high-dose steroids for graft-versus-host disease.
Findings:
- The pediatric patient developed mediastinal lipomatosis following intensive steroid treatment post-bone marrow transplantation.
- This case highlights the occurrence of mediastinal lipomatosis in a pediatric population, a demographic with limited existing documentation.
Implications:
- Early diagnosis of mediastinal lipomatosis is critical in pediatric patients, particularly those with a history of bone marrow transplantation and steroid therapy.
- Recognizing this condition is important as these patients are also at an increased risk for developing secondary neoplasms.
Abstract:
Mediastinal lipomatosis has been described in adults and is a well recognized cause of mediastinal enlargement. Fatty accumulation in the mediastinum has been observed following extended usage of large doses of steroids, generally greater than 60 mg daily. Little documentation of this entity exists in pediatric patients. A 9-year-old male who received large doses of steroids for graft-versus-host disease following bone marrow transplantation for acute myelogenous leukemia developed mediastinal lipomatosis. Early qualification of this diagnosis is especially important in this group of patients, who are also at risk for a second neoplasm.