[A case of pflügeroma or mixed germ cell-sex cord stroma tumor]. / A propos d'un cas de pflügérome ou "tumeur mixte germinale des cordons sexuels et du stroma".

We report a case of pflügerome, a tumor now designated by the term "mixed germ cell sex cord and stroma tumor". This infrequent tumor consists in a proliferation of germ cells surrounded by Sertoli-granulosa-type cells and arises in patients with a feminine phenotype and a 46XY karyotype; it should be differentiated from gonadoblastomas that are seen in patients with a female phenotype and a 46XY or 46XX/46XY mosaic karyotype. Prognosis is good and recovery occurs following exeresis. On the basis of their studies on gonadal differentiation in human embryos, the authors propose the following terms: "tumors of the gonadal anlage with male differenciation" for gonadoblastomas, "tumors of the gonadal anlage with female differentiation" for pflügeromes.

[Metastatic pulmonary emboli: clinical types and incidence (author's transl)]. / Les embolies pulmonaries néoplasiques. Expressions cliniques et incidence anatomique.

Pathological examinations during autopsy of 1457 cases of cancer demonstrated the presence of metastatic pulmonary emboli in 10 p. cent (148 cases). The were divided, as a function of their site and histological type of the primary neoplasm, as follows: hepatoma 33 p. cent, chorioepithelioma 25 p. cent, endocrine glands 19 p. cent, biliary tract 17.6 p. cent, hypernephroma 15.6 p. cent, sarcoma 13 p. cent, and various other tumors such as cancer of the pancreas, and breast. Two anatomical types of these emboli can be distinguished: one mixed type associated with a pulmonary cancerous lymphangitis (90 cases), and observed at a later stage in the disease. This may be latent or cause a subacute cor pulmonale. The other type is not associated with lymphangitis (58 cases), results from hematogenic cancers (hepatoma, hypernephroma, etc...), is often seen at an early stage, and causes sudden death. Histological examination enabled the consequences of any infarct developing as a result of the emboli to be demonstrated, and the origin of the emboli from neoplasmatic thromboses in the primary cancer drainage routes or from metastases in the liver to be determined.

[Immunosecretory cells in human bone marrow. Immunofluorescence study on histological sections]. / Les cellules immunosecrétrices dans la moelle osseuse humaine. Etude en immunofluorescence sur coupes histologiques.

The authors report on a method for studies using immunofluorescence with total and anti-light chain anti-immunoglobuline immune serums of bone marrow specimens previously fixed, decalcified, and embedded in paraffin. The semi-quantitative counts of plasmocytes on histological sections are in agreement with those performed by other authors on smears of bone marrow punctures. The results of this method are in agreement with those of serum electrophoresis. It provides a distinction between polyclonal and monoclonal plasmocytosis and an exact identification of clonal proliferation of a frank tumorous nature (myeloma and Waldenström). Applicable to autopsies performed within 24 hours, it reveals the existance in the vast majority of amyloid diseases of monoclonal dysglobulinemia, without the abnormal clone being necessarily present in the other immunocyte area (spleen and ganglions).