A syndrome linked to chromosome 16 (ATR-16), a contiguous gene deletion syndrome, is a form of alpha-thalassemia characterized by microcytosis, hypochromia, normal hemoglobin (Hb) level or mild anemia, associated with developmental abnormalities.
Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective).