Film reticulation

three films shown here demonstrat,c varying degrees of retiCuiaCi(jK This is perhaps best described as a weblike formation or appearanw or as a. kind of network or cracked appearance in t,he emuision. Such reticulation is caused by placing films that have been processed in a moderatel~y warm soIui:ic~n into a second solution which has a considerably lower temperature. Tlx resnit of this action is a sudden solidifying of an almost liquid emulsion w~.~h a tendency to congeal into multiple centers and thus pull away from the areas HE

-Each month this section will bring to the readers of OEAL SUBGEEY, ORAL '!&cNc~~~-~ ANII ORAL PATHOLOGY one or more roentgenograms which demonstrate unusual, nntixpe&k& rare, or bizarre roentgenagraphie changes. These roentgenograms will be accompanied by an explanation or by words of inquiry regarding the particular change. All films used in thi3 section will be accepted with the understanding that 2 by 2 or 31/4 by 4 inch slides or glossy hotographs of the films will be made available to interested readers through the editor ok tK e American Academy of Oral Roentgenology at the individual’s expense. The cost will involve only the ph.otographer’s charges. Each slide or print will give credit to the donor. Please be certain to identify VMIU Interesting roentgenograms are solicited from all sources. films properly so that they can be returned. All material for publication should be submitked to Dr. Arthur R. Wuehrmann, University of Alabama School of Dentistry, Medical Center, Birmingham, Alabama. 567

568

ROENTGENO-ODDITIES

OS., O.&f.& O.P. May,

1960

peripheral to these centers. The degree of reticulation shown in the uppep right-hand and lower films was produced deliberately for purposes of demonstration and emphasis. The amount of reticulation found in the upper left-hand film is quite common. Arthur H. Wuehrmann University of Alabama