Clinical and genetic aspects of the hamartoneoplastic syndromes that can be diagnosed during the three first days of life.

Abstract

Dismorfología, Citogenética y Clínica: Resultados de estudios sobre los datos del ECEMCThe hamartoneoplastic syndromes are an heterogeneous group of diseases characterized by their risk to develop malignant tumors among other clinical features that vary from one syndrome to another. Most of these pathologies also share endocrinological abnormalities and sometimes, genetic characteristics, including the autosomal dominant mode of inheritance. Therefore, pediatricians must be aware of their main characteristics in order to prevent as soon as possible further complications and to provide the appropiate genetic counseling to the affected patients and their families. In this chapter, we have classified these pathologies in seven different groups according to the more frequently affected tissue by the development of hamartomas. For each of these groups we reviewed the hamartoneoplastic syndromes that have some manifestations at birth. Finally, some practical guidelines are provided for their clinical, genetic diagnosis, and management.N