. Lectures on surgical pathology : delivered at the Royal College of Surgeons of England. m from the body of the testis. It is not improbable that these structures may at timesundergo cystic dilatation, in which case, should dehiscence of the cyst through any causeoccur, seminal fluid would be discharged into the sac of the tunica vaginalis. * Under this name are here included the sero-cystic sarcomata of Sir B. C. Brodie (Lec-tures on Pathology and Surgery); most of the specimens of Cysto-sarcoma phyllodes andproliferum of MuUer (On Cancer) ; and most of the tuberous cystic tumors of Mr. Ctes


. Lectures on surgical pathology : delivered at the Royal College of Surgeons of England. m from the body of the testis. It is not improbable that these structures may at timesundergo cystic dilatation, in which case, should dehiscence of the cyst through any causeoccur, seminal fluid would be discharged into the sac of the tunica vaginalis. * Under this name are here included the sero-cystic sarcomata of Sir B. C. Brodie (Lec-tures on Pathology and Surgery); most of the specimens of Cysto-sarcoma phyllodes andproliferum of MuUer (On Cancer) ; and most of the tuberous cystic tumors of Mr. CtesarHawkins (Medical Gazette, vol. xxi, p. 951). f Section of an ovary with many closely-placed cysts formed by enlargement of Graafianvesicles: natural size. J An observation recently made by Rokitansky (Wiener. Wochenblatt, 1855, No. 1), con-firms in a very striking manner, the truth of the statement, that cystic disease of the ovarymay result from an enlargement of the Graafian vesicles, for he has found, in a case of in-cipient cystic disease of the ovary, the ovule within the 374 COMPOUND OR PROLIFEROUS CYSTS. enlarge together, and, sometimes, by the wasting of their partition walls,come into communication, they may at length look like a single many-chambered cyst, having its one proper wall formed by the extendedfibrous covering of the ovary. Many multilocular cysts, as they arenamed, are only groups of close-packed single cysts; though, when ex-amined in late periods of their growth, and, especially, when one of thegroup of cysts enlarges much more than the rest, it may be difficult todistinguish them from some of the proliferous cysts.* Of the first formation of cysts that may be proliferous I need notspeak; for, so far as is at present known, they may be formed exactlyas the barren cysts are. A cyst may be proliferous in whichever ofthe plans describedin the last lecture it may have had its origin. Thus, 1. Bursas formed by expansion and rarefying of areolar space


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