Preferred Label : Type II Pleuropulmonary Blastoma;
NCIt synonyms : Type II PPB;
NCIt definition : A subtype of pleuropulmonary blastoma characterized by the presence of cysts with
a microscopic population of primitive malignant small cells and a malignant solid
mesenchymal component. It may have an aggressive clinical course.;
Alternative definition : NICHD: A pleuropulmonary blastoma comprising malignant small cells in a cystic and
solid pattern.;