Tag: hereditary disease

November 15, 2025 / Mohammed looti

AMSTERDAM DWARF DISEASE

Historical Context and Nomenclature The condition historically referred to as Amsterdam Dwarf Disease, or sometimes designated as the Amsterdam type of retardation, is recognized in contemporary medicine primarily as Cornelia de Lange Syndrome (CdLS). This complex, multisystem developmental disorder was first comprehensively described in 1933 by the Dutch pediatrician Cornelia de Lange, following her detailed […]

November 15, 2025 / Mohammed looti

SINGLE-GENE DISORDER

Definition and Fundamental Characteristics A single-gene disorder, often referred to synonymously as a monogenic disorder, is a medical condition caused by a mutation or alteration in the genetic sequence of a single gene. These disorders adhere fundamentally to the principles of Mendelian inheritance, distinguishing them sharply from complex or multifactorial diseases that arise from the […]