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Genomic SNP Microarray -Tissue

Alternate test name

Gene name / Alternate gene name


Lab area
Genome Diagnostics - Cytogenetics
Method and equipment
DNA extraction; Genomic Microarray Platform - Cytoscan HD SNP Array (Affymetrix)
Expected turn-around time
Newborns and expedited cases: 2 weeks Routine: 4 weeks
Specimen type

Cultured Fibroblasts

Specimen requirements

2xT25 confluent flasks at room temperature

Storage and transportation

Room temperature. Deliver to Laboratory as soon as possible.

Please Note: A completed  SickKids Geneomic SNP Microarray requistion is required.

The reasons for referral listed on the submitted microarray requistion MUST meet the indications authorized by the MOHLTC, which include developmental delay/intellectual disability and/or multiple congenital anomalies.

Shipping information
The Hospital for Sick Children
Division of Genome Diagnostics
555 University Avenue, Black Wing, Room 3416
Toronto, ON
M5G 1X8
Phone: 416-813-7200 ext. 2
Hours: Monday to Friday, 8 a.m. to 4:30 p.m.
Off hours: Please send to Rapid Response Laboratory, 555 University Avenue, Room 3642
Email Molecular Lab:
Email Cytogenetics:
Background and clinical significance

Microarray analysis is  performed on cultured fibroblasts only if peripheral blood is unavailable, or if mosaicism is suspected.

Approximately 10-20% of individuals with unexplained developmental delay or multiple congenital anomalies will have a CNV considered to be clinically relevant.

Disease condition

Developmental delay and or congenital anomalies

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