Chirurgie; sa théorie et sa pratique . ne ou cartilage, et sera de nouveau mentionné sous les maladies osseuses. Les tissus conjonctifs de la grognine, à l'exception des os, sont probablement d'autres tumeurs, ou des structures telles que les kystes, les tendons et les muscles, qui ont une calcification ou une ossification dédergone. Myxomata ou tumeurs muqueuses se composent de tissus ressemblant au thattrouvée dans le cordon ombilical et l'humour vitreux de l'oeil; butnombreux des grognements qui étaient autrefois revendiqués comme myxomatawould semblent être fibromata, sarcomata ou enchondromata mucoid non dergoing adoucissement. Les myxomata purs sont des tumorsands innocents ne reviennent pas

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Surgery; its theory and practice . ne or cartilage, andwill again be referred to under diseases of bone. Those growingin connective tissue apart from bone are probably other tumors, or structures such as cysts, tendons, and muscles, that have un-dergone calcification or ossification. Myxomata or mucous tumors consist of tissue resembling thatfound in the umbilical cord and vitreous humor of the eye; butmany of the growths that were formerly claimed as myxomatawould appear to be fibromata, sarcomata or enchondromata un-dergoing mucoid softening. Pure myxomata are innocent tumorsand do not return if completely removed, but they may attain alarge size. Structure.—They consist of a soft gelatinous semi-translucentmaterial, enclosed in a loose capsule of connective tissue, and in-tersected by bands of fibrous tissue. On section, they are of apinkish or yellowish-grey color, and of a soft gelatinous consist-ency, often almost diffluent; whilst a tenacious and glairy fluid- 84 GENERAL PATHOLOGY OF SURGICAL DISEASES. Fig. 14.. INIyxomatous Tumors. containing large quantities of mucin oozes away from the cut sur-face. Under the microscope there are seen round and spindlecells and stellate cells with branching processes, the processes forming a delicate stroma in themeshes of which the homogeneous, gelatinous basis-substance is con-tained (Fig. 14). The round andspindle cells vary in number, andare not shown in the diagram.Fibrous tissue, fat, cartilage, andsometimes adenomatous and sar-comatous elements may likewise bepresent; but it is questionable inthese cases whether the tumorshould not be regarded as a softfibroma, lipoma, enchondroma, sar-coma, etc., undergoing mucoid degeneration. Secondary Changes.—Fatty degeneration, inflammation, ulcer-ation, and the formation of blood-cysts owing to rupture of thecapillary vessels. Usual seats.—They are most often found in the nose, wherethey constitute the gelatinous polypus. They are also found inthe adipose, subcutaneous, s

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