Since few practices can do horizontal beam radiography with standard machines in the operating room, dental radiographic units mounted on a mobile stand can be used to intraoperatively radiograph calculi at the base of the os penis. It may take awhile to develop a technique chart and to practice positioning, but a small regular radiograph cassette can be used with acceptable results. Of course, obtaining a postoperative lateral caudal abdominal radiograph to confirm that no calculus remains is a good idea as well.

Dr. John S. Parker
Novi, Mich.