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A case of malignant nephroblastoma was identified in a 4.5-month-old female Macaca fascicularis. The age of onset, clinical history, gross and microscopic pathology, and the pulmonary metastasis were analogous to this condition as seen in man.

Intraocular granulomas associated with tuberculosis were observed in 2 subhuman primates (Ateles geoffroyi and Macaca mulatta). Bacterial cultures from lung tissues at the time of necropsy confirmed the presence of Mycobacterium bovis and M tuberculosis, respectively. The absence of generalized clinical signs in spite of systemic dissemination of the organisms in these cases and the public health significance of tuberculous infections emphasize the importance of proper observation and diagnostic procedures in primate colonies and display collections.

Plasmodium inui malaria is an infrequently reported disease of Macaca mulatta. In this report a total of 21 of 48 monkeys in a closed colony of diabetic animals developed hematological evidence of P. inui infection with five showing overt clinical signs of the disease. Diagnosis was confirmed morphologically, serologically and by transmission studies. Since six of these animals were born in the colony, a means of transmission was sought and it was determined that multiple use of a syringe to administer intravenous anesthesia was the probable means of cross transmission.