lung weight : body weight ratios , radial alveolar or radial canalicular counts and point-counting of sections of lungs in cases 1 and 2 show that laryngeal or tracheal obstruction may prevent or reduce the pulmonary hypoplasia associated with renal dysplasia , and in cases 2 and 3 , that grossly enlarged , hyperplastic lungs may not be seen unless obstruction is complete .
C0265783
pulmonary hypoplasia
C0024109
lungs