Manual of pathological anatomy . ly ar-ranged side by side in bundles,(as in Fig. 33) whence the nameof carcinoma fascicrdatum ap-plied by Miiller and Eokitanskyto some tumours of this such bundles, crossingone another at various angles, arecut in a fine section, the appear-ance of loculi or spaces maybe produced, but there is notany true locular arrangementin sarcoma as here tumours arise most fre-quently from fibrous structures,as periosteum, fascia, muscularsepta, &c., but are also foundin glands, in the eye and otherparts. They are often hardlydistinguishable by th
Manual of pathological anatomy . ly ar-ranged side by side in bundles,(as in Fig. 33) whence the nameof carcinoma fascicrdatum ap-plied by Miiller and Eokitanskyto some tumours of this such bundles, crossingone another at various angles, arecut in a fine section, the appear-ance of loculi or spaces maybe produced, but there is notany true locular arrangementin sarcoma as here tumours arise most fre-quently from fibrous structures,as periosteum, fascia, muscularsepta, &c., but are also foundin glands, in the eye and otherparts. They are often hardlydistinguishable by the nakedeye from fibrous tumours, butin other cases are translucentand soft, seldom opaque and*medullary in mostly small they mayattain the size of a mans character.—Tumours of this group may often be com-pletely and finally removed by operation, and produce no generalafiection of the constitution; but very often a new growth takesplace at the seat of operation, and the tumour may in this way. Section of spindle-celled sarcoma fromthe membranes of the spinal cord ; partly-teased out. The left hand of the figure showsthe fasciculate arrang-ement of the spindle-cells. On the right hand they have beenseparated from one another, to show theirtapering prolongations and large nuclei.(After Virchow, Die Krank. Geschw. p. 197.) VARIETIES OF SARCOMA. 169 recur several times. It may also give rise to growths in distantparts of the body, especially the lungs ; and the history of suchcases may be in no respect different from that of canceroustumours. We must therefore consider it as among the possi-bilities with regard to a spindle-celled sarcomatous tumour that itmay produce all the phenomena of malignancy; though statisticswould show that this event is by no means so likely to happen asin the case of true cancer.* Bound-celled Sarcoma ; Medullary Sarcoma ; Emhryoplastic Tumour,—These tumours have been in many cases described as medullaryor encep
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