pulmonary alveolar microlithiasis is an uncommon infiltrative pulmonary disease characterized by deposition of microliths in the alveoli. we present the case of a young adult with complaints of shortness of breath on exertion. chest radiograph showed innumerable small, dense nodules, diffusely involving both the lungs - predominantly in the lower zones. high-resolution ct scan illustrated wides...

Interest in the recent literature on alveolar cell tumors of the lung has centered about the disagreement as to their histogenesis. With regard to their development from the alveolar lining, Bensley and Bensley’ believe that a continuous layer of epithelial cells line the alveoli. Others feel that the alveoli have a discontinuous epithelial lining, and some think that no true epithellal lining ...

TO THE EDITOR: Chen et al. (1) recently published in the Journal of Applied Physiology a modeling study of lung inflation effects on stretch and stress of an alveolar septum separating aerated and flooded alveoli (1). Chen et al. base their model on two images from an experimental study by Jahar Bhattacharya, David Lederer, and me (3). Chen et al.’s fundamental analysis is sound, a natural exte...

SCHULTZ, ALVIN L., JEROME T. GRISMER, SHOHACHI WADA, AND FRANCISCO GRANDE. Absorption of albumin from alveoli of perfused dog lung. Am. J. Physiol. 207(6) : I 300-1304. 1g64An iodinated albumin solution was instilled into the isolated perfused dog lung through a bronchial catheter. During the 5hr period following instillation, 6.4% of the iodinated albumin dose was absorbed from the lung into t...

Alveoli-Like Multifunctional Scaffolds A metal-organic framework and gold nanoparticles in a porous backbone organize novel alveolilike multifunctional scaffold. It allows for label-free detection real-time monitoring of the cellular behaviors under toxic-conditions via redox-active amperometry nanospectroscopy. More details can be found article number 2301395 by Seonghyeon Eom, So Yeon Lee, Ju...

Since alveolar and airway growth have previously been studied in greater detail than has arterial growth, the present study establishes the growth pattern of the arteries and relates this to that of the alveoli and airways. The pattern of post-natal alveolar multiplication found is similar to that reported by Dunnill, but for all ages about 10% above his figure. Alveolar size hardly changes in ...

• In studies of gas exchange between the lung and the pulmonary circulation it is generally assumed that the principal exchange takes place at the level of the pulmonary capillaries. The work presented here shows that some gaseous exchange can occur as well between the lung and vessels of macroscopic size. Hydrogen gas when administered to a subject by inhalation can be detected in the pulmonar...

Fibered confocal fluorescence microscopy (FCFM) is a new technique that can be used during a bronchoscopy to analyze the nature of the human bronchial and alveolar mucosa fluorescence microstructure. An endoscopic fibered confocal fluorescence microscopy system with spectroscopic analysis capability was developed allowing real-time, simultaneous images and emission spectra acquisition at 488 nm...

Horse serum, crystallized hemoglobin, and crystallized egg albumin have been injected into the lung alveoli of dogs in which the entrances of the right lymphatics have been tied and the thoracic duct cannulated. Samples of blood and lymph have been taken following this injection. Only after several hours in the case of the horse serum and hemoglobin have these proteins been detected by immunolo...

The percentage retention at 24 hours of 4 micron Teflon particles, aerodynamic diameter about 6 micron, was studied in 29 healthy male volunteers. The particles were inhaled at 0.5l/s with maximally deep breaths. The 24 hour retention correlated significantly with FEV1 and FVC and persisted when the subjects were divided into different categories according to profession and smoking habits. The ...