An American text-book of genito-urinary diseases, syphilis and diseases of the skin . Fig. 120.—Spikelet of meadow foxtail coveredwith phosphatic deposit (Harrison). Fig. 121.—Needle more than half covered with adeposit of lithic acid (Harrison). but they are rare ; ordinarily, stones with an outer layer of phosphates havelarge nuclei of urates or oxalates and have no specially characteristic form. Spontaneous Fracture of Stone.—The subject of spontaneous fractureof stone has been treated by few writers (Ord, Debout dEstrees, Fenwick, etc.).. - Stone formed around a penholder (Harrison!. This
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . Fig. 120.—Spikelet of meadow foxtail coveredwith phosphatic deposit (Harrison). Fig. 121.—Needle more than half covered with adeposit of lithic acid (Harrison). but they are rare ; ordinarily, stones with an outer layer of phosphates havelarge nuclei of urates or oxalates and have no specially characteristic form. Spontaneous Fracture of Stone.—The subject of spontaneous fractureof stone has been treated by few writers (Ord, Debout dEstrees, Fenwick, etc.).. - Stone formed around a penholder (Harrison!. This phenomenon is of rare occurrence. It has happened to the writer tomeet with two examples of it: in both instances the specimens were foundpost-mortem. The first observation was published some years ago. In thatcase the patient, who was eighty years of age, had had no bladder-symptomsup to the time of his death. The bladder contained fifty-nine stones of pureuric acid of about the size of large peas, and a considerable quantity of stonedetritus ; the larger fragments had all undergone spontaneous fracture in one SPONTA NEO US FBA CTURE. 415 or both of two ways—either by radial cleavage from the center to the periph-ery or by splitting in concentric laminae. (See Plate 6.) The second casewas that of a gentleman who had suffered for many years from stone. Ati the autopsy the bladder was found to contain six stones, four of which werelarge ; five of the stones lay free in the bladder, their surfaces smooth andfacetted; the sixth (Fig. 1
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectsyphilis
