Surgery; its theory and practice . : (i) Adenoma; and B. The malignant: (i)Spheriodal-celledcarcinoma : (a) Hard, scirrhous, or chronic caj-cinoma, (<5) Soft encephaloid, or acu,te carcinoma; and (^) Col-loid carcinoma. (2) Squamous-celled carcinoma {epithelioma),and (3) Columnar-celled or cylindrical carcinofna. III. Teratoma, a rare form of tumor, containing bone, hair,teeth, or fragments of the viscera of a suppressed foetus. L CONNECTIVE-TISSUE TUMORS. A. Tumors of the type of fully-formed connective tissue. Fibromata or fibrous tumors consist of fibrous tissue, whichmay vary in density
Surgery; its theory and practice . : (i) Adenoma; and B. The malignant: (i)Spheriodal-celledcarcinoma : (a) Hard, scirrhous, or chronic caj-cinoma, (<5) Soft encephaloid, or acu,te carcinoma; and (^) Col-loid carcinoma. (2) Squamous-celled carcinoma {epithelioma),and (3) Columnar-celled or cylindrical carcinofna. III. Teratoma, a rare form of tumor, containing bone, hair,teeth, or fragments of the viscera of a suppressed foetus. L CONNECTIVE-TISSUE TUMORS. A. Tumors of the type of fully-formed connective tissue. Fibromata or fibrous tumors consist of fibrous tissue, whichmay vary in density from the firmness of a tendon or ligament tothe soft consistency of the subcutaneous tissue. They are quiteinnocent, grow slowly, do not return if completely removed, andare usually surrounded by a distinct capsule. Structure.—7he firmer varieties (Fig. 11) consists of densefibrous tissue intermixed with but few elastic fibres and connective-tissue corpuscles. The fibres, as a rule, fire variously interlaced FIBROUS TUMORS. Fig. Fibrous tumor. Firm variety. without definite arrangement, though in some fibromata they formconcentric circles around the blood-vessels. On section they ap-pear firm, smooth, and glistening, and of a grayish-white vessels are usually small, thin-walled, and not numerous, thoughcertain of the fibromata {naso-phar-yngeal polypi) are very vascular, andare permeated by large cavernousblood-spaces. The softer varieties,formerly called fibro-cellular tumors,consist of loose succulent fibrous tis-sue, and often contain large and nu-merous blood-vessels. On sectionthey appear yellowiafti, glistening,semi-transparent, and gelatinous, anda serous fluid can be squeezed outfrom the cut surface. Secondafj changes.—Calcification,ulceration, and mucoid softening. Usual seats.—Fibromata may grow from the connective tissueanywhere, but the harder forms are chiefly met with in the peri-osteum, especially that of the jaws {fibrous epulis), in the uterusw
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectsurgery, bookyear1896
