Modern surgery, general and operative . Tio\-itis, Purulent Peritonitis, Empyema, etc.). Fig. 78.—Drainage-tubes for abscess requiring irri-gation. MI. ULCERATION AND FISTULA An ulcer is a loss of substance due to molecular death of a superficialstructure. The molecular death is brought about by bacteria. Ordinan,-ulcers are caused by pus organisms. The action of the pus organisms is thesame as in an abscess. A broken abscess becomes an ulcer, and an ulcer isin structure a haK-section of an abscess. The floor of an ulcer consists of- 152 Ulceration and Fistula granulation tissue and correspond
Modern surgery, general and operative . Tio\-itis, Purulent Peritonitis, Empyema, etc.). Fig. 78.—Drainage-tubes for abscess requiring irri-gation. MI. ULCERATION AND FISTULA An ulcer is a loss of substance due to molecular death of a superficialstructure. The molecular death is brought about by bacteria. Ordinan,-ulcers are caused by pus organisms. The action of the pus organisms is thesame as in an abscess. A broken abscess becomes an ulcer, and an ulcer isin structure a haK-section of an abscess. The floor of an ulcer consists of- 152 Ulceration and Fistula granulation tissue and corresponds to the abscess wall. An abscess arisesfrom molecular death within the tissues; an ulcer, from molecular death ofa free surface. An ulcer may increase in size by molecular death of adja-cent structures or by sloughing, that is to say, by death of visible masses oftissue. A wound healing by granulation is often wrongly called an ulcer must not be confounded with an excoriation. In an ulcer the coriumis always, and the subcutaneous tissue is generally, destroyed, and a scar
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectsurgery
