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What is Pleuropulmonary blastoma and explain in detail?
Pleuropulmonary blastoma (PPB) is a rare cancer originating in the lung or pleural cavity.  It occurs most often in infants and young children but also has been reported in adults.  In a retrospective review of 204 children with lung tumors, pleuropulmonary blastoma and carcinoid tumor were the most common primary tumors (83% of the 204 children had secondary tumors spread from cancers elsewhere in the body). Pleuropulmonary blastoma is regarded as malignant. The male:female ratio is approximately one.

Signs and symptoms
Symptoms may include coughing, an upper respiratory tract infection, shortness of breath, and chest pain.  These symptoms are very non-specific, and can be caused by other types of tumor in the lung or mediastinum more generally, and by other conditions