Gene Mutation in Samples From Young Patients With Pleuropulmonary Blastoma Syndrome at Risk for Developing Cancer

Brain and Central Nervous System Tumors, Hereditary Wilms Tumor, Kidney Cancer, Liver Cancer, Neuroblastoma, Pleuropulmonary Blastoma, Sarcoma

embryonal childhood rhabdomyosarcoma, cystic nephroma, neuroblastoma, childhood medulloblastoma, childhood hepatoblastoma, stromal predominant Wilms tumor, hereditary Wilms tumor, pleuropulmonary blastoma

RATIONALE: The identification of gene mutations in young patients with pleuropulmonary blastoma syndrome may allow doctors to better understand the genetic processes involved in the development of some types of cancer, and may also help doctors identify patients who are at risk for cancer. PURPOSE: This research study studies gene mutations in samples from young patients with pleuropulmonary blastoma syndrome at risk for developing cancer.

OBJECTIVES: * To determine if DICER1 mutations contribute to tumor pathogenesis in cystic nephromas and cystic partially differentiated nephroblastomas outside of families with pleuropulmonary blastoma (PPB) syndrome. OUTLINE: Archived DNA samples are analyzed for DICER1 mutation by qPCR and directly sequenced using BigDye Terminator chemistry. Results are then compared against the single nucleotide polymorphism (SNP) database.

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