The pathology and surgical treatment of tumors . malig-nancy, manifested by its more rapid growth,and by its tendency to give rise to regionaland general dissemination. Sarcomata ofsome of the bones present such peculiarclinical features that a special reference tothem is Bones.—Periosteal sarcoma of the cranial bones forms atfirst an external tumor which attacks the bone beneath, often leadingto diffuse secondary sarcoma of the dura mater, and even of the brainitself Anatomically the tumor is characterized by massive radiatingspicula; of bone. Myeloid sarcoma begins in the c
The pathology and surgical treatment of tumors . malig-nancy, manifested by its more rapid growth,and by its tendency to give rise to regionaland general dissemination. Sarcomata ofsome of the bones present such peculiarclinical features that a special reference tothem is Bones.—Periosteal sarcoma of the cranial bones forms atfirst an external tumor which attacks the bone beneath, often leadingto diffuse secondary sarcoma of the dura mater, and even of the brainitself Anatomically the tumor is characterized by massive radiatingspicula; of bone. Myeloid sarcoma begins in the connective tissue or myeloid tissueof the diploe, and by its growth causes destruction of both tables of thebone, resulting in the formation of large intracranial and extracranialtumor-masses connected by a portion which correspondswith the primary location of the tumor and the perforation in New bone is produced when the tumor has reached the peri-osteum, so that the tumor is covered externally by a thin shell of bone,. KiG. 414.—Periosteal fascicularof the femur ; one-third nat-ural size (after Ziesing). The lowerend of the femur is sawn through inan oblique frontal direction. SARCOMA. 579 which, however, yields to the increasing intracranial tension when thetumor pulsates synchronously with the hearts action; the tumor alsopresents other symptoms which point to its partly intracranial some cases no new bone forms, and pulsation appears as soonas perforation takes place. The tumor gradually becomes softer andsofter, and finally implicates the overlying skin, when ulceration andsloughing hasten the fatal termination. The external tumor has beenknown to attain a bulk of half the size of the head. The intracranialextension of the tumor often causes well-marked cerebral symptoms. Formerly, for obvious reasons, myeloid sarcomata of the cranialbones were regarded as absolutely fatal. Bold operation under strictantiseptic precautions has placed
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectneoplas, bookyear1895
