FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term Phelan-McDermid syndrome ID (Ontology) DOID:0080354 (Human Disease)
Definition A chromosomal deletion syndrome that has_material_basis_in a deletion, translocation, ring chromosome formation or other structural change of the terminal end of chromosome 22 in the 22q13 region or a disease-causing mutation of the SHANK3 gene and that is characterized by neonatal hypotonia, absent to severely delayed speech, global developmental delay, and minor dysmorphic facial features. Most cases of 22q13.3 deletion syndrome are not inherited with 20% of cases (autosomal dominant) inherited from a parent. The deletion occurs most often as a random event during the formation of reproductive cells (eggs or sperm) or in early fetal development.
Also Known As "22q13.3 deletion syndrome" ; "monosomy 22q13 syndrome"
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 Phelan-McDermid syndrome       1
 for disease ribbon | Phelan-McDermid syndrome       1
 model of | Phelan-McDermid syndrome       1
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  chromosomal disease
   |__chromosomal deletion syndrome
       |__Phelan-McDermid syndrome  1 rec.
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Is a chromosomal deletion syndrome
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Synonyms
  • "22q13.3 deletion syndrome" EXACT
    "monosomy 22q13 syndrome" EXACT
Secondary IDs
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GARD:10130
MIM:606232
ORDO:48652