This, the seventh volume in the New Clinical Applications Series, has an international flavour, with contributions from Australia (Mr N.e. Davis), Great Britain (Drs A.W. Macfarlane, N.C. Smith, M.F. Spittle, J.L.Verbov), and USA (Dr M.e. Finan and Professor R.K. Winkelmann). Dr Smith discusses some common skin tumours with his character­ istic informative clarity. It is appropriate that an authority such as Mr Davis should discuss a tumour that has a particularly high inci­ dence in his own country. Dr Spittle is a recognized authority on lymphomas and she writes succinctly on their management. Dr Finan and Professor Winkelmann have extensive experience of the rare condition, necrobiotic xanthogranuloma, and Drs Macfarlane and Verbov have been involved in the management of many patients with scleromyxoedema. I am very pleased to have had the opportunity of working with the contributors and thank them most sincerely for their efforts. I hope that this volume will interest dermatologists, oncologists, pathologists, radiotherapists and surgeons. JULIAN VERBOV ix ABOUT THE EDITOR Dr Julian Verbov is Consultant Dermatologist to Liverpool Health Authority and Clinical Lecturer in Dermatology at the University of Liverpool. He is a member of the British Association of Dermatologists, rep­ resenting the British Society for Paediatric Dermatology on its Executive Committee. He is a Committee Member of the North of England Dermatological Society, and Editor of its Proceedings.