Lymphatic Disorders Megan K. Dishop Claire Langston Congenital pulmonary lymphangiectasis is a rare primary disorder that causes respiratory distress in the newborn. In severe cases it may be fatal within…

Complications of Prematurity Megan K. Dishop Claire Langston Hyaline Membrane Disease Hyaline membrane disease, the histologic counterpart of severe respiratory distress syndrome, is the major cause of neonatal respiratory distress…

Congenital Lobar Overinflation Megan K. Dishop Claire Langston Congenital lobar overinflation, often called congenital (or infantile) lobar emphysema, refers to marked enlargement of a lobe due to airspace enlargement. It…

Pulmonary Hyperplasia and Related Disorders Megan K. Dishop Claire Langston Pulmonary hyperplasia refers to abnormal overgrowth of lung parenchyma, reflected by increased number and enlargement of airspaces. It is always…

Congenital Cystic Adenomatoid Malformation, Large Cyst Type Megan K. Dishop Claire Langston The classification of cystic lesions of the lung remains problematic, as attempts at classification based on size of…

Bronchogenic Cyst Megan K. Dishop Claire Langston Bronchogenic cysts are usually solitary unilocular cystic structures filled with either fluid or mucus and are usually attached to the trachea or major…

Extralobar Sequestration Megan K. Dishop Claire Langston Extralobar sequestration is defined as an isolated mass of pulmonary tissue that develops separately from the normal lung. It is invested in its…

Bronchial Atresia and Intralobar Sequestration Megan K. Dishop Claire Langston Bronchial atresia may be lobar, segmental, or subsegmental, and it may be isolated or associated with systemic arterial connection (intralobar…

Childhood Asthma Megan K. Dishop Claire Langston Asthma is a common disease usually with onset in childhood. It is characterized by airway hyperreactivity with acute episodic narrowing, particularly following environmental…

Nodular Histiocytic Hyperplasia Anna Sienko Nodular histiocytic hyperplasia of the pleural is a benign proliferation of histiocytes admixed with various amounts of mesothelial cells. Nodular histiocytic hyperplasia has been reported…