Molecular Basis of Langerhans and Non-Langerhans Cell Histiocytic Neoplasms and Castleman Disease

The purpose of this study is to use agnostic genomic evaluation using whole exome sequencing (WES) of a variety of rare hematologic diseases grouped under rare blood diseases and its variants to further elucidate the understanding of the chemistry of these disorders and identify potential actionable mutations that can be targeted with therapies in the context of clinical trials.