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Published on: September 20, 2018
Infantile refsum disease: case report
Vaishali Choksi1, Ellen Hoeffner, Ercan Karaarslan
1Department of Neuroradiology, University of Michigan Health System, Ann Arbor, USA. vrchoksi@med.unmich.edu
Insights
Infantile Refsum disease, a rare metabolic disorder, involves phytanic acid buildup. This report details MR imaging findings in two neonates, tracking disease progression over time.
Area of Science:
- Biochemistry
- Genetics
- Radiology
Background:
- Infantile Refsum disease (IRD) is a rare autosomal recessive metabolic disorder.
- It stems from impaired phytanic acid metabolism, with phytanic acid exclusively sourced from diet.
- IRD often manifests symptoms in the neonatal period.
Observation:
- This study presents MR imaging findings in two IRD cases.
- The imaging documented progressive changes over time due to disease advancement.
- Initial diagnosis relied on clinical history, examination, and biochemical data.
Findings:
- MR imaging revealed characteristic changes associated with infantile Refsum disease.
- Longitudinal imaging demonstrated disease progression and its impact on brain structure.
- Correlating imaging findings with clinical and biochemical data aids diagnosis.
Implications:
- Understanding MR imaging patterns in IRD is crucial for early diagnosis and management.
- This case series highlights the utility of serial imaging in assessing disease course.
- Further research into IRD pathogenesis and therapeutic strategies is warranted.
Abstract:
Infantile Refsum disease is a rare inborn error of phytanic acid metabolism. It is inherited in an autosomal recessive manner and frequently causes signs and symptoms in the neonate period. The only source of phytanic acid in humans is exogenous, from diet. We report the MR imaging findings in two cases of infantile Refsum disease and note the MR imaging changes that occurred over time because of further progression of the disease. The initial diagnosis in both patients was made on basis of history, clinical findings, and biochemical studies.
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