Multiple sclerosis in an adrenoleukodystrophy carrier.

Area of Science:

• Neurology
• Genetics
• Metabolic Disorders

Background:

• X-linked adrenoleukodystrophy (X-ALD) is a rare inherited metabolic disorder characterized by very long chain fatty acid (VLCFA) accumulation, primarily affecting males but potentially causing symptoms in female carriers.
• Neurological complications in female X-ALD carriers can manifest, though often less severe than in affected males.

Observation:

• A young adult female, identified as a heterozygous carrier for X-ALD, presented with episodic sensorimotor symptoms.
• Clinical presentation and diagnostic investigations were more indicative of multiple sclerosis (MS) than X-ALD pathology.

Findings:

• This is the first reported case of a female X-ALD carrier whose symptoms were primarily consistent with co-existing multiple sclerosis.
• The patient's presentation underscores the diagnostic challenge in differentiating X-ALD-related symptoms from other neurological conditions in female carriers.

Implications:

• Highlights the importance of considering common neurological diagnoses, such as MS, even in patients with rare genetic predispositions like X-ALD.
• Suggests a need for comprehensive diagnostic approaches in female carriers of X-ALD presenting with neurological symptoms.
• Emphasizes that carrier status for rare diseases does not exclude the possibility of concurrent, more prevalent conditions.