NEUROL^•MPHOMATOSIS IX CHICKENS 11 



Table 3. The Locations of Nel kolymphomas and Lymphocytomas in 



Four Flocks 



Flocks 



Tissue A B C D 



Ovary 19 



Celiac plexus 18 



\'agus ner\e 10 



Sciatic nerve 7 



Ovarian ner\e 15 



Brachial plexus 6 



Mesenteric ner\e 5 



AIesenrer\- 1 



Crural iier\e 4 



Kidiie\' 3 



Renal nerve 1 



Muscle 1 



Thyroid 2 



Thxnius 



Skin 1 



Liver 1 



Hepatic ner\e 



Sj:)leen 



Splenic ner\e 



Optic ner\'e 1 



Lung 



Pulnionarx- nerve 



Peritoneum 



Peroneal nerve 1 



Testis 1 



Gizzard 



Proventriculus 2 



Gastric plexus 1 



Pancreas 1 



Cervical nerve 



Intestine 



Number of Birds 25 17 5 17 



In Flock A direct infiltration appeared to have occurred between the neuro- 

 lymphomas of the celiac plexus and ovarian nerves, and the lymphoc>tomas 

 of the ovar>". The other neurolymphomas and hmphocxtomas were apparent!}' 

 of metastatic inception. In Flock B direct infiltrations had apparently- occurred 

 between the neurolymphomas of the vagus nerves and the Kniphocytomas of 

 the thyroid and thymus glands. The neoplasms of the liver, spleen, skin, and 

 other tissues were apparenth- of metastatic origin, as perivasciilar infiltration 

 was demonstrated histologicalK' in all of them. In Flock C the neurolymphomas 



