. Lectures on surgical pathology : delivered at the Royal College of Surgeons of England. d they are usually spoiled by the operations for removingthem; but what I have seen, and the descriptions which others haverecorded, leave little doubt that this imitation of erectile tissue is a fre-quent character among them. John Bells accountf of the aneurism by anastomosis, which is by far the most vivid and exact, in re-lation to the history of the disease,that has yet been published, - with this statement. Although he /iiMfmilSl^^^SlS^?^^ ^^^ chiefly in view the arterial -. B«tllBml^l«Jli


. Lectures on surgical pathology : delivered at the Royal College of Surgeons of England. d they are usually spoiled by the operations for removingthem; but what I have seen, and the descriptions which others haverecorded, leave little doubt that this imitation of erectile tissue is a fre-quent character among them. John Bells accountf of the aneurism by anastomosis, which is by far the most vivid and exact, in re-lation to the history of the disease,that has yet been published, - with this statement. Although he /iiMfmilSl^^^SlS^?^^ ^^^ chiefly in view the arterial -. B«tllBml^l«Jli^MiHfAiA% variety of these tumors, yet of one he says, The substance of it wascellular, stringy, and exactly re-sembling the corpora cavernosapenis . . the cells were filled withblood from the arteries, which en-tered the tumor in all he compares to a spongesoaked in blood; and the descrip-tions of other examples, though lessexplicit, imply the same. The de-scriptions by Mr. Wardrop§ andMr. Caesar Hawkins,|| and the moreminute accounts of structure by Fig. * Mus. Coll. Surg., 301 a. f Principles of Surgery, vol. i, p. 456, e. s. J Fig. 77. Section of an erectile tumor in the College Museum, described above. It isdravi^n one-third larger, and rather coarser, than naturaL§ Trans., vol. ix, p. 201, and pi. Medical Gazette, vol. xxxvii, p. 1027. ERECTILE OR VASCULAR TUMORS. 497 Mr. Goodsir,* and Mr. Listonf and Rokitansky,| confirm this view ;and neither Mr. Birketts,§ nor any other that I have met with, is dis-cordant from it. The essential structures of the disease are, according to these de-scriptions, derived from such a growth of bloodvessels, or rather ofblood-spaces, that, in imitation of erectile tissue, the whole mass seemsformed of cells or spaces, opening widely into one another : and, in ex-treme cases, no remains exist of the walls of the vessels, except thosenarrow bands and cords that bound and intersect the cell-like sp


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