Preferred Label : Type I Pleuropulmonary Blastoma;
NCIt related terms : Type I PPB;
NCIt definition : A subtype of pleuropulmonary blastoma characterized by the presence of cysts with
a microscopic population of primitive malignant small cells. There is no evidence
of a malignant solid mesenchymal component. It usually has a good prognosis compared
to types II and III pleuropulmonary blastoma.;
Alternative definition : NICHD: A pleuropulmonary blastoma comprising malignant small cells in a cystic pattern.;