[Tooth crowding and plaque development].
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Biomedical subjects
Publications and source records attributed to B Markowski.
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Sixty-one patients with lymph node metastases and occult primary tumor are reported. The patients were analyzed with respect to age and sex, as well as to the histologic diagnosis of the lymph nodes examined. In 24 of these patients, the primary tumor was found later; in 12 of these, not until autopsy. Site and histologic type of the lymph node metastases permit conclusions about the primary tumor. Treatment of the metastasis by surgery or irradiation ist indicated in order to hinder expansion and, in cases of late discovery of primary tumor, to take advantage of the remaining chances for a cure. The prognosis is unfavorable when the primary tumor remains undiscovered. In our patient group, the average survival time following confirmation of a lymph node metastasis was only 25 months. Lymph node metastases in the neck region are a special case. Here, the occult primary tumor ist sometimes cured in connection with surgery and/or irradiation of the cervical region.
Organs were identified in the fetal products of pregnancies of short gestation terminated by the suction method. Various tissues from such fetuses were grown in tissue-culture and some of these cultures were used for the isolation of viruses. This new approach would ensure the supply of human embryonic tissue, essential for certain virlogical procedures, as suitable fetuses from pregnancies terminated by hysterotomy become less common. Tissues from these early fetuses could also be used fro transplantation and developmental studies.
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