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RET Del/Dup



Clinical Utility:
  • 1. Confirmation of a clinical diagnosis
  • 2. Determination of appropriate screening and surgical management
  • 3. Identification of at-risk family members
  • 4. Prenatal diagnosis
Lab Method:
Exon Array CGH


Test Code:
Turnaround Time:
3-4 weeks
Preferred Specimen:
2-5 mL Blood - Lavender Top Tube
Alternative Specimen:
Oral Rinse (30-40 mL)


CPT Codes:
New York Approved:
ABN Required:
Billing Information:
View Billing Policy
* For ICD9 to ICD10 conversion please follow this link
ICD-9 Codes:
  • 751.3: Hirschsprung's disease and other congenital functional disorders of colon, Aganglionosis, Congenital dilation of colon, Congenital megacolon, Marcrocolon
  • 227: Adrenal gland, Suprarenal gland
  • 193: Malignant neoplasm of thyroid gland, Thyroglossal duct
* For price inquiries please email


  1. Mulligan, L.M. et al., Specific mutations of the RET proto-oncogene are related to disease phenotype in MEN 2A and FMTC. Nat Genet. 6: 70-4, 1994
  2. Mulligan, L.M. et al., Genotype-phenotype correlation in multiple endocrine neoplasia type 2: report of the International RET Mutation Consortium. J Intern Med. 238: 343-6, 1995
  3. Elisei, R et al., RET genetic screening in patients with medullary thyroid cancer and their relatives: Experience with 807 individuals at one center. J Clin Endocrinol Metab 92(12)4725-4729, 2007
  4. Heshmati HM, et al. Genetic testing in medullary thyroid carcinoma syndromes: mutation types and clinical significance. Mayo Clin Proc 72(5):430-436, 1997
  5. Wiench M et al. Estimation of risk of inherited medullary thyroid carcinoma in apparent sporadic patients. J Clin Oncol 19(5):1374-1380, 2001
  6. Shirahama S et al. Mutational analysis of the RET proto-oncogene in 71 Japanese patients with medullary thyroid carcinoma. J Hum Genet 43:101-106, 1998
  7. Yip, L. et al., Multiple Endocrine Neoplasia Type 2: Evaluation of the Genotype-Phenotype Relationship. Arch Surg. 138: 409-16, 2003

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