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[A case of McLeod syndrome]
R Sugihara1, H Ueyama, S Fujimoto
1Third Department of Internal Medicine, Oita Medical University.
Rinsho Shinkeigaku = Clinical Neurology
|April 16, 1999
Summary
McLeod syndrome, a rare X-linked disorder, presents with neurological issues like chorea and muscle weakness, alongside high creatine kinase levels and acanthocytes. It is crucial for differentiating chorea acanthocytosis and hyperCKemia.
Area of Science:
- Neurology
- Genetics
- Hematology
Background:
- McLeod syndrome is a rare X-linked recessive disorder.
- It is characterized by neurological and hematological abnormalities.
Observation:
- A 52-year-old man presented with chorea, proximal muscle weakness, absent deep tendon reflexes, and significantly elevated serum creatine kinase (CK) levels.
- Blood analysis revealed acanthocytes (spiky red blood cells) and weak expression of specific Kell blood group antigens on red blood cells (RBCs).
Findings:
- The patient's clinical presentation and laboratory findings, including hyperCKemia and acanthocytosis, led to the diagnosis of McLeod syndrome.
- Muscle biopsy showed non-specific myopathic changes, with normal immunohistochemical staining for dystrophin, merosin, and adhalin.
Implications:
- This case highlights the importance of recognizing McLeod syndrome in the differential diagnosis of chorea acanthocytosis and hyperCKemia.
- Early diagnosis and understanding of McLeod syndrome are vital for patient management and genetic counseling.