. Tumours, innocent and malignant; their clinical characters and appropriate treatment. ^ occupies the end of a bone the vesicles may invadethe adjacent joint (Fig. 358). Spine.—Echinococcus cysts occur in connexion with thespine under three conditions. 1. The cysts are situated entirely ivithin the canal. Suchare divisible into two sets: (a) cysts lying inside the duralsheath, and (b) those which grow in the loose areolar tissuebetween the bone and the dura mater (Fig. 359). The ma-jority belong to the latter division. Schlesenger tabulated the variety and position of four Dura Mater -Cord. F
. Tumours, innocent and malignant; their clinical characters and appropriate treatment. ^ occupies the end of a bone the vesicles may invadethe adjacent joint (Fig. 358). Spine.—Echinococcus cysts occur in connexion with thespine under three conditions. 1. The cysts are situated entirely ivithin the canal. Suchare divisible into two sets: (a) cysts lying inside the duralsheath, and (b) those which grow in the loose areolar tissuebetween the bone and the dura mater (Fig. 359). The ma-jority belong to the latter division. Schlesenger tabulated the variety and position of four Dura Mater -Cord. Fig. 359.—Extradural eclimococcus cyst compressing the sx^iial cord at the levelof the third cervical vertebra. (Modified from Colman.) hundred tumours of the spinal canal: forty-four were echino-coccus cysts, five were intradural and thirty-nine extradural. 2. The cysts arise in a vertebra and extend into the neuralcanal. Primary echinococcus colonies of the vertebrae areexamples of E. onultilocularis (Fig. 360). 3. Echinococcus colonies groiving in tissues adjacent tothe spine inay involve the vertebrcc and extend into thespinal canal. Symptoms and diagnosis.—The localizing symptomsdepend entirely on the situation of the cyst. For example,when the cyst or colony is in the spinal canal the symptoms DIAGNOSIS 671 will be those common to any tumour large enough to com-press the spinal cord and produce paraplegia. In the cranialcavity the symptoms are identical with those produced byany tumour which compresses the brain. In the abdomen, especially when the cysts are connectedwith th
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectneoplasms, bookyear19
