654 



lobes having a generally similar shape but of different size. On the 

 dorsal side of each no evidence was revealed, upon gross examination, 

 of the presence of kidney tissue. On the ventral side of the left 

 kidney there was a narrow band of kidney tissue (Fig. 3), the size 



Fig. 2. Fig. 3. 



Fig. 2. The dorsal and ventral view of the right kidney having the adrenal 

 tumor. Mangified 2 )«(. 



Fig. 3. The dorsal and ventral view of the left kidney having the adrenal 

 tnmor. Magnified 2 X- 



of the lobes concealing the rest. On the ventral side of the right 

 kidney between the large lobes on each end there was considerable 

 kidney tissue evident. 



Neither in a gross study nor in a subsequent histological examin- 

 ation was there evidence of the normal adrenal in its normal po- 

 sition. 



The urinogenital duct on the left side was on the inner border 

 of the kidney instead of being on the outer border, its normal po- 

 sition. The attachment of this misplaced urinogenital duct would 

 seem to indicate that it had been carried over the ventral surface of 

 the kidney by the growth of the tumor because its suspensory mem- 

 brane was attached along the ventral surface of the kidney. 



A study of the cytology of these kidneys, using the well known 

 basic and plasma stains, revealed the real character of the foreign 

 growths. Sections were made through the various parts to determine 

 whether all parts were in agreement with the result that the small 

 and large lobes were found to exhibit the same structural characters. 

 Fig. 4 shows that there are cavities of different sizes and that 

 finger-like processes extend into them. Around the peripheral portion 

 of the tumor the cavities are much smaller and in some instances 

 none were observed. Each lobe is enclosed in a connective tissue 

 capsule which separates the tumor from the remaining kidney tissue. 



