[Mammary protistoma in a bitch and microcebus. Contribution to the study of the pathogenesis of tumors].

The term "protistoma" is proposed to point at a variety of mammary tumor where the presence of a parasitic protist was revealed by culture and histological sections. When associated with one or more cells the protist gives rise to a xenoparasitical complex that intervenes in various ways in the tumorous process.

[Culture of a pathogenic protist isolated from the genital system and various organs of Primates].

A relatively simple diphasic medium, the composition of which is given, allow the cultivation in vitro at 37 degrees C of the parasitic protist discovered in the genital system of Primates. From the study of the various cultural forms a first interpretation of the biological cycle of the parasite may be given.

[Discovery of a protist parasite, apparently akin to Acrasiae, in the genital tract and various organs of primates].

Microcysts were first observed in histological sections of the placenta of a gibbon, the uterus of a Microcebus, showing a pyometra, the placenta, spleen and lung of a new born mangabey which died soon after birth from an interstitial pneumonia. Plasmodial forms were also discovered in the sections, either encysted or infiltrating the tissues. Cultures from all the above mentioned pathological material were attempted on a special medium, the composition of which will be given later.

[1st observations of the pathogenicity of Ichthyophonus in birds. 2 cases of natural infection].

Two cases of ichthyophoniasis (ichthyosporidiosis) are reported for the first time in fish-eating birds, heron and herring gull. The lesions were mainly in the heart, liver, spleen and kidney. The fungus was isolated from them, cultivated and found identical to a strain previously obtained from a sea-fish.