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Abnormal myelination in a patient with deletion 14q11.2q13.1
G P Ramelli1, L Remonda, K O Lövblad
1Department of Pediatrics, Ospedale San Giovanni, Bellinzona, Switzerland.
Abstract:
A male carrying an interstitial deletion of chromosome 14, presumably del(14)(q11.2q13), and presenting with abnormal myelination on magnetic resonance imaging is described. The abnormal myelination was evidenced as a high-signal intensity on T(2)-weighted magnetic resonance imaging. The patient had severe neurologic signs, various dysmorphic features, and a marked microcephaly. To our knowledge, this case is the first patient reported with abnormal myelination and a deletion of chromosome 14.
Insights
This study describes the first reported patient with a chromosome 14 deletion and abnormal brain myelination. The deletion, del(14)(q11.2q13), was associated with severe neurological symptoms and developmental abnormalities.
Area of Science:
- Genetics
- Neurology
- Radiology
Background:
- Interstitial deletions of chromosome 14 are rare genetic events.
- Abnormal myelination is a significant indicator of neurological dysfunction.
- Magnetic Resonance Imaging (MRI) is crucial for assessing brain structure and myelination.
Purpose of the Study:
- To report a novel case of a male patient with an interstitial deletion of chromosome 14.
- To document and analyze the associated abnormal myelination patterns observed via MRI.
- To highlight the clinical and radiological features in this unique genetic condition.
Main Methods:
- Case report of a male patient.
- Genetic analysis to identify chromosomal deletion (presumed del(14)(q11.2q13)).
- Magnetic Resonance Imaging (MRI), specifically T(2)-weighted sequences, to evaluate myelination.
Main Results:
- The patient presented with an interstitial deletion of chromosome 14, del(14)(q11.2q13).
- Abnormal myelination was identified on T(2)-weighted MRI, showing high-signal intensity.
- Severe neurologic signs, dysmorphic features, and marked microcephaly were observed.
Conclusions:
- This represents the first reported case of abnormal myelination in a patient with a chromosome 14 deletion.
- The findings underscore the potential neurological impact of chromosome 14 deletions.
- Further research is warranted to understand the specific mechanisms linking this deletion to myelination defects.