del(21)(q)

 

Epidemiology and Etiology:

·         Sporadic mostly

 

Common sites:

·          

 

Gross features:

·          

 

Histologic features:

·          

 

Immunophenotype:

Marker:

Sensitivity:

Specificity:

 

 

 

 

Molecular features:

·         APP – amyloid precursor protein

·         SOD1 – superoxide dismutase-1

 

Other features:

·          

 

References:

·         Gardner RJM, Sutherland GR. Chromosome Abnormalities and Genetic Counseling. 2nd ed. Oxford University Press, USA; 1996:496.