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GTD Indications Diagnosis Carrier / Cascade Testing Prenatal GTD Samples Accepted Blood Amniocyte CVS GTD Test Methodology FISH GTD Methodology Notes Metaphase FISH GTD Notes Before requesting this test, please contact the lab for information regarding eligibility and availability of testing for your patient. Generic Test name (cms title) FISH: Sotos Syndrome GTD Test type Cytogenetic GTD Location Children's Hospital of Eastern Ontario GTD Gene/Platform/Region List NSD1, 5q35 GTD Category Chromosomal Anomalies GTD Disease/Condition Sotos syndrome (Sotos syndrome, cerebral gigantism)