25.4.1 Data elements. The data dictionary defines each data element, assigns it a meaningful name, specifies both its logical and physical characteristics, and records information concerning how it is used. Table 25.1 summarizes the type of information that might be recorded in the data dictionary.
General Discussion. Moebius syndrome is a rare neurological disorder characterized by weakness or paralysis (palsy) of multiple cranial nerves, most often the 6th (abducens) and 7th (facial) nerves. Other cranial nerves are sometimes affected. The disorder is present at birth (congenital).
A girl aged 2 1/2 years with Moebius syndrome was found to have a deletion of band q12.2 in chromosome 13 (46,XX,del(13)(q12.2]. This is the second report concerning involvement of chromosome 13q and Moebius syndrome.The observation raises the possibility that a gene responsible for Moebius syndrome is located in this region of chromosome 13.his is the second report concerning involvement of chromosome 13q and Moebius syndrome. The observation raises the possibility that a gene responsible for Moebius syndrome is located in this region of chromosome 13.