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Microphthalmia with single central incisor and hypopituitarism
1Department of Pediatrics, University of Nevada School of Medicine, Reno 89557.
Journal of Medical Genetics
|March 1, 1990
Summary
A patient presented with microphthalmia, a single central incisor, and hypopituitarism, suggesting holoprosencephaly. This highlights the need to consider holoprosencephaly in cases of midline malformations due to genetic factors.
Area of Science:
- Medical Genetics
- Developmental Biology
- Clinical Medicine
Background:
- Holoprosencephaly (HPE) is a spectrum of brain malformations resulting from incomplete forebrain division.
- Midline defects can manifest in various forms, impacting facial structures and endocrine function.
- Genetic factors play a significant role in the etiology and variable expressivity of HPE.
Observation:
- A case report details a patient with a unique combination of microphthalmia (abnormally small eyes).
- The patient also exhibited a single central incisor, a rare dental anomaly.
- Hypopituitarism, a deficiency in pituitary hormone production, was also noted.
Findings:
- The observed constellation of microphthalmia, single central incisor, and hypopituitarism is proposed as a novel association.
- This specific phenotype is believed to represent a manifestation of holoprosencephaly.
- The findings underscore the diverse clinical presentations of HPE.
Implications:
- Clinicians should maintain a high index of suspicion for holoprosencephaly when encountering midline malformations.
- Early recognition of HPE is crucial for genetic counseling and management of associated endocrine and developmental issues.
- This case expands the known phenotypic spectrum of holoprosencephaly, aiding future diagnostic efforts.