Article Text

other Versions

PDF
Further evidence of the increased risk for malignant peripheral nerve sheath tumour from a Scottish cohort of neurofibromatosis type1 patients
  1. Jennifer A McCaughan (lajennia{at}aol.com)
  1. South East of Scotland Clinical Genetics Service, University of Edinburgh, Western General Hospital, United Kingdom
    1. Susan M Holloway (susan.holloway{at}luht.scot.nhs.uk)
    1. South East of Scotland Clinical Genetics Service, University of Edinburgh, Western General Hospital, United Kingdom
      1. Rosemary Davidson (rosemarie.davidson{at}yorkhill.scot.nhs.uk)
      1. West of Scotland Clinical Genetics Service, Fergusson Smith Centre for Clinical Genetics, Glasgow, United Kingdom
        1. Wayne WK Lam (wayne.lam{at}ed.ac.uk)
        1. South East of Scotland Clinical Genetics Service, University of Edinburgh, Western General Hospital, United Kingdom

          Abstract

          A recent study, looking at the lifetime risk of developing MPNST (malignant peripheral nerve sheath tumour) in patients with NF1 (neurofibromatosis type 1), estimated the risk to be 8% - 13%. Prior to this, longitudinal studies had shown that patients with NF1 had a risk of 4% - 5% of developing MPNST and cross sectional studies found that only 1-2% of NF1 patients had MPNST. The aim of this study was to estimate the life time risk of MPNST in NF1 patients in southern Scotland, using patient records obtained from the Edinburgh and Glasgow Genetic Units and Scottish Cancer Register (SCR). In the period 1993-2002, 14 patients with NF1 were diagnosed with MPNST in a population of 3.5 million. The lifetime risk of MPNST in the Scottish NF patients was calculated to be 5.9% – 10.3%. This is further evidence that NF1 patients are at greater risk of developing MPNST than was previously estimated and emphasises the importance of educating patients about suspicious symptoms, which may need an urgent medical opinion. Mean age at diagnosis of MPNST was significantly (p<0.05) lower and 5 year survival significantly (p<0.01) less in patients with NF1 than in unaffected individuals. This may be because NF1 patients present later because the tumour is mistaken for a neurofibroma or that MPNST has a more aggressive course in NF1.

          • Malignant Peripheral Nerve Sheath Tumors
          • Neurofibroma
          • Neurofibromatosis 1
          • Neurofibrosarcoma
          • von Recklinghausen's Disease

          Statistics from Altmetric.com

          Request permissions

          If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.