88 
duration under natural conditions. In one case, however, the 
tumours persisted for several months, and, although decreas- 
ing in size, did not completely disappear even during the 
winter. 
developed the characteristic yellowish points. Ulceration has 
rarely occurred at this stage. A history of a more or less 
sudden appearance, without any evidence of injury 9r 
bacterial infection, may help one in making a diagnosis. 
Macroscopic examination.—The tumours may be single 
or multiple, and those of some weeks' duration are usually 
ulcerated on the surface. | e from 
en situated on the glans penis they vary in size irO 
that of a pea to larger en that of a eleak The largest 
it is seen that the tissue is tough, firm, and fibrous, decir 
ep inkish In colour, and contains scattered throughout the 
mass irregular, yellowish, caseous areas varying in size trom 
. in length, or even larger. Int 
caseous areas lie closer to 
than the. external surface. 
= erg caseous areas may contain some calcareous 
h individual lesion they have much the same pon 
r, but vary in form., Those from an ker 
. in shape, yellow in colour, and hard, 
ng a branchi ; 
o < . whening appearance : 
Points of caseous tissue seen (on a cross section arà 
© parts of a larger area. No transition between 
