XII, B. 2 Mendoza-Guazon: Anatomicopathologic Lesions 77 



Table XI. — Age incidence of bronchopneumonia cases. 



Cases. 



to 1 month 21 



1 to 6 months 55 

 6 months to 1 year 38 



1 to 2 years 35 



2 to 3 years 17 



3 to 4 years 9 



4 to 5 years 5 



Total 180 



The above tables show that the mortality is less during May 

 and that the disease is prevalent throughout the year. They also 

 show that the younger the patient the more fatal is the disease 

 and that its occurrence diminishes inversely with age, which is 

 in accord with textbooks. 



The sexes in the series are not equally affected, the male sex 

 predominating, there being 100 males and 80 females. 



Seat of lesions. Bronchopneumonia is usually bilateral and is 

 found frequently in the posterior parts of the lungs and many 

 times in the lower lobes. In this series the right lung was 

 singly affected in 23 cases and the left in 12 cases. The left 

 lower lobe is the first in the order of frequency, followed by the 

 lower lobe of the right, then the upper lobe of the same side, and 

 lastly the upper lobe of the left. The middle lobe of the right 

 was found affected alone in one instance. 



Associated pathologic lesions. Bronchopneumonia is in many 

 instances terminal, and at autopsy it is not always easy to decide 

 accurately whether the lung lesion preceded the other lesions, 

 as those of the alimentary tract, marasmus, and meningitis, or 

 whether it was secondary to them. This type of lung lesion was 

 found associated with some form of morbid condition of the ali- 

 mentary tract in 90 cases, 12 being Asiatic cholera, and 2 acute 

 enteritis due to typhoid. Some of these were accompanied by 

 other lesions, as otitis media, 5 cases ; fibrinous pleurisy, 4 ; sup- 

 purative meningitis, 1 ; catarrhal cholecystitis, 2 ; renal and ve- 

 sical calculi, 1. Other cases showed 2 or 3 morbid conditions, 

 as otitis media; ulcerative colitis and noma or otitis media; 

 and colitis and chronic leptomeningitis. 



As extension downward from diphtheritic tracheobronchitis 

 there were 5 cases, and as extension from some pathologic 

 lesion in the other parts of the lungs, as lobar pneumonia and 

 abscesses, there were 12 cases. 



It was also found in 2 cases of pyonephritis, in 5 cases of 



