Report upon a specimen of xanthic oxide calculus / by W.W. Keen.

  • William Williams Keen
Date:
1882
Catalogue details

Licence: Public Domain Mark

Credit: Report upon a specimen of xanthic oxide calculus / by W.W. Keen. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    REPORT UPON A SPECIMEN OF XANTIIIC OXIDE CALCULUS. V£-- A 6UUGKON TO ST. MAUY'S HOSPITAL. [Read December 6, 1882.] I DESIRE to i)reseiit for Dr. George L. Porter, of Bridgeport, Conn., a specimen of xantliic oxide cal- culus. It consists of one-half of a stone, an inch and a half long and an inch wide. This half is to be de- })()sited in the ]\Iuseuni of the Jellerson Medical Col- lege, the other half is in the Army Medical Museum, Washiugton, D. C. So rare is this calculus that, including the present sjiecinien, only eight have ever been descri1)ed, and none of thoni so completely as Dr. Porter's. Moreover, this is the only specimen ever I'ccognized and described by an American surgeon. Four of the specimens are liiitish, two French, and one German. Marcet in LSI7 described the first calculus of this kind which was recognized. The present stone was passed spontaneously by a woman eighteen years old. Its clinical histor}' i)re- sents nothing specially worthy of note, but its chemi- cal constitution makes it very interesting. Xan- thine or xanthic oxide is analogous to uric acid, having, however, one less equivalent of oxygen, and