O. The Bacillus of Chancroid.
—The bacillus of chancroid identified by Ducrey, and briefly described in the chapter on that subject.
Fig. 7
Rhinoscleroma: infiltration of tissues about the nose. (Case reported by Dr. Wende, Buffalo.)
Fig. 8
Bacilli of rhinoscleroma. × 1000. (Fränkel and Pfeiffer.)
YEASTS.
Busse was the first to call attention of clinicians and pathologists to the role played by yeasts in certain infections. Since the original observations of Busse in a case in which the organism produced a general infection, the lesions of which were a combination of tumor and abscess formation, various observers have noted the presence of pathogenic yeasts, usually in skin lesions. Gilchrist and Stokes were the first in this country to determine the nature of these organisms, and their observations have been followed by the detection of a large number of similar cases. In the skin lesions the organisms are found in minute abscesses; in the subcutaneous tissue and in the infections similar to those of Busse large abscesses surrounded by extensive masses of granulation tissue characterize the infection. The organisms can be detected in the pus by means of an examination of the fresh unstained fluid ([Fig. 9]).