Non Chromosomal Syndromes Associations and Sequences

Famous People With Microcephaly

A syndrome, association, sequence, or complex is a constellation of abnormal physical signs, each nonspecific in isolation but resulting in a mosaic that can be diagnosed with confidence. The pathogenic mechanisms involved are variable. The clinical presentation depends on the pathogenic mechanism and the time of occurrence. Approximately 2 of all newborn infants have a significant malformation which may be relatively simple or complex. The later the defect develops in gestation, the more...

Turner Syndrome In Infants

Transverse Baby

A close-up of the face of the same infant with the typical Potter facies associated with oligohydramnios and renal agenesis. Note the low-set abnormal ears, the flat nose, and micrognathia. Epicanthal folds were also present. Figure 1.26. Radiograph of the lower extremities of the same infant with sirenomelia shows the presence of two separate femora with fusion of soft tissue, two separate tibiae, and a single fibula distally. Skeletal deficiencies may be longitudinal defects...

Cutis Verticis Gyrata

Cutis Verticis Gyrata

Another infant with the femoral hypoplasia-unusual facies syndrome. Note the small stature, predominantly the result of the small lower limbs. Figure 3.44. Close-up of the lower extremities of the same infant showing the absence of the femora. Figure 3.45. Posterior view of the lower extremities of die same infant. Figure 3.46. Radiograph of the lower extremities of the same infant showing the absence of femora bilaterally, a hypoplastic fibula on the right and an absent fibula on...