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Solitary median maxillary central incisor syndrome
A single maxillary central incisor positioned in the midline with morphological symmetry of the crown and bordered by lateral incisors. [from HPO]
Pelger-Huët anomaly
An autosomal dominant inherited condition caused by mutations in the lamin B receptor gene. It is characterized by defects in the neutrophil lobulation, resulting in the presence of dumbbell-shaped neutrophils with bilobed nuclei in the peripheral blood smear. [from NCI]
Nondisjunction
Chromosomal mosaicism as described here refers to a tendency to chromosomal nondisjunction. See also premature chromatid separation (PCS; 176430), which may also predispose to chromosomal nondisjunction. [from OMIM]
Abnormality of chromosome segregation
An abnormality of chromosome segregation. [from HPO]
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