KnowraPrader–Willi syndromeLinked fromLinked fromThe 7 pages that link to Prader–Willi syndrome, each with the reason it gives.All 7Broader topic 1Related 2Compared with 4Genomic imprintingBroader topic: Loss of expression from the paternal chromosome 15 imprinted region causes the syndrome.Growth hormone therapyRelated: Growth hormone can improve growth and body composition, but requires careful safety screening.HypotoniaRelated: Marked hypotonia in infancy is a characteristic early feature.Angelman syndromeCompared with: It involves the same imprinted region but typically reflects loss of paternal rather than maternal gene expression.Fragile X syndromeCompared with: It is another genetic cause of developmental and behavioral differences, with a distinct mechanism.1p36 deletion syndromeCompared with: Early hypotonia can resemble a feature of 1p36 deletion syndrome, though the causes differ.Smith–Magenis syndromeCompared with: Its sleep, behavioral, and developmental features can overlap, but its genetic cause and clinical pattern differ.