Bannayan-Riley-Ruvalcaba syndrome

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vamsikrishna Gunnam M.B.B.S [2]

Synonyms and keywords: Ruvalcaba-Myhre syndrome, Ruvalcaba-Myhre-Smith syndrome, Riley-Smith syndrome, Bannayan syndrome, or Bannayan-Zonana syndrome

Overview

Bannayan-Zonana syndrome is a rare hamartomatous disorder with occurrence of multiple subcutaneous lipomas, macrocephaly and hemangiomas.

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Bannayan-Riley-Ruvalcaba syndrome from Other Diseases

Epidemiology and Demographics

Incidence

Age

Risk Factors

Screening

Natural History, Complications, and Prognosis

Most lesions of BZS are slowly growing and easily resectable. Visceral as well as intracranial involvement may occur in rare cases, and can cause bleeding and symptomatic mechanical compression, especially of the spinal cord or spinal nerve roots. This may require surgical resection.

Diagnosis

Diagnostic Criteria

History and Symptoms

Physical Examination

HEENT

Neck

Abdomen

  • Hamartomatous polyps in gastrointestinal tract

The macroencephaly of BZS is symmetrical, and does not cause widening of the ventricles or raised ICP (intracerebral pressure).

Laboratory Findings

Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Prevention

References

  1. Bonneau D, Longy M (2000). "Mutations of the human PTEN gene". Hum. Mutat. 16 (2): 109–22. doi:10.1002/1098-1004(200008)16:2<109::AID-HUMU3>3.0.CO;2-0. PMID 10923032.
  2. Pilarski R, Stephens JA, Noss R, Fisher JL, Prior TW (August 2011). "Predicting PTEN mutations: an evaluation of Cowden syndrome and Bannayan-Riley-Ruvalcaba syndrome clinical features". J. Med. Genet. 48 (8): 505–12. doi:10.1136/jmg.2011.088807. PMID 21659347.
  3. Lachlan KL, Lucassen AM, Bunyan D, Temple IK (September 2007). "Cowden syndrome and Bannayan Riley Ruvalcaba syndrome represent one condition with variable expression and age-related penetrance: results of a clinical study of PTEN mutation carriers". J. Med. Genet. 44 (9): 579–85. doi:10.1136/jmg.2007.049981. PMC 2597943. PMID 17526800.
  4. Marsh DJ, Kum JB, Lunetta KL, Bennett MJ, Gorlin RJ, Ahmed SF, Bodurtha J, Crowe C, Curtis MA, Dasouki M, Dunn T, Feit H, Geraghty MT, Graham JM, Hodgson SV, Hunter A, Korf BR, Manchester D, Miesfeldt S, Murday VA, Nathanson KL, Parisi M, Pober B, Romano C, Eng C (August 1999). "PTEN mutation spectrum and genotype-phenotype correlations in Bannayan-Riley-Ruvalcaba syndrome suggest a single entity with Cowden syndrome". Hum. Mol. Genet. 8 (8): 1461–72. PMID 10400993.
  5. Bhargava, R.; Au Yong, K. J.; Leonard, N. (2013). "Bannayan-Riley-Ruvalcaba Syndrome: MRI Neuroimaging Features in a Series of 7 Patients". American Journal of Neuroradiology. 35 (2): 402–406. doi:10.3174/ajnr.A3680. ISSN 0195-6108.
  6. Sagi SV, Ballard DD, Marks RA, Dunn KR, Kahi CJ (January 2014). "Bannayan Ruvalcaba Riley Syndrome". ACG Case Rep J. 1 (2): 90–2. doi:10.14309/crj.2014.11. PMID 26157835.
  7. Schreibman IR, Baker M, Amos C, McGarrity TJ (February 2005). "The hamartomatous polyposis syndromes: a clinical and molecular review". Am. J. Gastroenterol. 100 (2): 476–90. doi:10.1111/j.1572-0241.2005.40237.x. PMID 15667510.
  8. Lynch NE, Lynch SA, McMenamin J, Webb D (July 2009). "Bannayan-Riley-Ruvalcaba syndrome: a cause of extreme macrocephaly and neurodevelopmental delay". Arch. Dis. Child. 94 (7): 553–4. doi:10.1136/adc.2008.155663. PMID 19321504.
  9. Busa T, Milh M, Degardin N, Girard N, Sigaudy S, Longy M, Olshchwang S, Sobol H, Chabrol B, Philip N (March 2015). "Clinical presentation of PTEN mutations in childhood in the absence of family history of Cowden syndrome". Eur. J. Paediatr. Neurol. 19 (2): 188–92. doi:10.1016/j.ejpn.2014.11.012. PMID 25549896.