DURING recent years, considerable effort has been directed to the development of effective operative methods for the correction of stenotic and regurgitant malformations of the aortic valve. Initially, reconstructive procedures on the valve were performed, but the results of these operations were generally unsatisfactory. Prosthetic valves were then utilized, and the first ones to gain wide acc...

Idiopathic pulmonary hemosiderosis (IPH) is an uncommon chronic disorder in children. It is characterized by recurrent pulmonary hemorrhage and may result in hemoptysis and pulmonary insufficiency. The most common hematologic manifestation of IPH is iron deficiency anemia. The etiology of IPH is not known and its diagnosis may be difficult due to the variable clinical courses. The most helpful ...

Necropsies of two browser rhinoceroses, African black (Diceros bicornis) and Sumatran (Dicerorhinus sumatrensis), often reveal extensive iron-pigment deposition in various tissues. This condition (hemosiderosis) has not been observed in species that are natural grazers, African white (Ceratotherium simum) and Asian greater one-horned (Indian; Rhinoceros unicornis), nor in any species free rangi...

Miliary mottling on chest radiography is seen in miliary tuberculosis, certain fungal infections, sarcoidosis, coal miner’s pneumoconiosis, silicosis, hemosiderosis, fibrosing alveolitis, acute extrinsic allergic alveolitis, pulmonary eosinophilic syndrome, pulmonary alveolar proteinosis, and rarely in hematogenous metastases from the primary cancers of the thyroid, kidney, trophoblasts, and so...