" /> Emanuel syndrome - CISMeF





Preferred Label : Emanuel syndrome;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : 22) SYNDROME; Supernumerary der(22)t(11;

Description : Emanuel syndrome is characterized by multiple congenital anomalies, craniofacial dysmorphism, and significant developmental delay and mental retardation. Features include ear anomalies, preauricular tag or sinus, cleft or high-arched palate, micrognathia, microcephaly, kidney abnormalities, heart defects, and genital abnormalities in males (summary by Carter et al., 2009). Carriers of the balanced constitutional t(11;22) translocation are phenotypically normal but have a 10% risk of having progeny with supernumerary der(22)t(11;22) syndrome as a result of malsegregation of the der(22). The affected progeny are genotypically unbalanced because they carry the der(22) as a supernumerary chromosome--either 47,XX, der(22)t(11;22) or 47,XY, der(22)t(11;22) (Zackai and Emanuel, 1980; Lin et al., 1986).;

Inheritance : Inherited chromosomal imbalance;

Molecular basis : Caused by non-Robertsonian constitutional translocation, (11 22)(q23 q11.2);

Laboratory abnormalities : Patients have supernumerary chromosome - 47,XX(or XY), der(22), (11:22)(q23:q11); Carriers have balanced constitutional translocation - 46,XX(or XY), (11:22)(q23:q11);

Prefixed ID : #609029;

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15/05/2024


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