Cancer of the stomach; a clinical study of 921 operatively and pathologically demonstrated cases . riationin size of individual bacilli. Photomicrogram.—(Author.) Long chains of organisms of this group are uncommon;short chains often occur. The individual bacilli makingup the chains vary in length, but resemble each other,structurally. When the bacilli grow in chains they areusually blunt ended, but on account of the curved orwavy outline of the individual bacillus the resultant chainoften has an irregular zig-zag appearance. In old, stagna-tion contents, some of these chains form loops, nearl
Cancer of the stomach; a clinical study of 921 operatively and pathologically demonstrated cases . riationin size of individual bacilli. Photomicrogram.—(Author.) Long chains of organisms of this group are uncommon;short chains often occur. The individual bacilli makingup the chains vary in length, but resemble each other,structurally. When the bacilli grow in chains they areusually blunt ended, but on account of the curved orwavy outline of the individual bacillus the resultant chainoften has an irregular zig-zag appearance. In old, stagna-tion contents, some of these chains form loops, nearlycomplete ellipses or circles. Staining Properties.—The typical bacilli stain uniformly 214 CANXER OF THE STOMACH a bluish-purple with Unnas polychrome methylene absorb the blue about as deeply as do yeast the baciUi grow longer or form chains, they stain ir-regularly so that frequently there are alternate bands ofdeep and Hght color. This gives the organism a some-what beaded appearance. It may be that this bizarrestaining appearance is due to the fact that the organism. Fig. 53.—Oppler-Boas bacilli. Showing half-circle, shinny stick andring forms. Photomicrogram of old retention contents.—(Author.) is wa,vj or corkscrew-like. If this be so, different portionsof the bacillus come into focus at different times. Cer-tainly some of the more hghtly stained areas appear darkerupon focusing. The bacilU take the iodine stain evenly,and are colored a hght amber-yellow by Lugols solu-tion. This perhaps helps to differentiate them fromleptothrix forms and from ordinary lactic acid bacilli. Artificial Culture.—Two types of culture media wereused: (1) ordinary beef bouillon, and (2) bouillon made EXAZMIXATIOX OF GASTEO-IXTESTIXAL FrXCTIOX 215 from fresh cancer tissue. The tubes were inoculatedfrom a cancerous retention contents. Its acidity was:total, 15; free Hcl^ 0. Moxroscopic Examination.—After 24 hours the tubescontaining bacilli in the cancer extract m
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