Juvenile Polyposis Syndrome
Use
Juvenile polyposis syndrome is a condition associated with the formation of numerous polyps in the gastrointestinal tract, specifically hamartomatous juvenile polyps. These polyps can lead to various symptoms including gastrointestinal bleeding, anemia, diarrhea, and abdominal pain. Individuals diagnosed with juvenile polyposis syndrome have an increased risk of developing colorectal cancer due to the potential for polyp formation. Early detection and management of polyps are crucial to prevent malignancy and manage symptoms effectively.
Special Instructions
Not provided.
Limitations
The genetic analysis for juvenile polyposis syndrome targets coding exons 1-11 of the BMPR1A and SMAD4 genes, along with adjacent intronic nucleotides. Gross deletion/duplication analysis is conducted to determine gene copy number. The methodologies used, such as next generation sequencing and multiplex ligation-dependent probe amplification, while highly effective, may not detect all possible variants. Intronic variants beyond 5 base pairs are not reported unless they are of clinical significance. Potential false-negative results are a possibility if there are areas of the genome not covered by current testing methods, or due to technical limitations like insufficient read depth in complex regions.
Methodology
NGS (Targeted)
Biomarkers
BMPR1A, SMAD4
Gene
Result Turnaround Time
14-21 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Please ensure specimen collection adheres to routine blood collection procedures. Contact your healthcare provider regarding any potential difficulties, particularly if there is a history of blood drawing complications.
Causes for Rejection
Improperly labeled specimens, hemolyzed samples, or samples stored improperly may be rejected.
Other tests from different labs that may be relevant