[Diagnostic evaluation of the cancer patient: fundamental objectives and bases for its elaboration]. / Evaluación diagnóstica del enfermo oncológico: objetivos fundamentales y bases para su elaboración.

The authors describe cancer diseases as a reaction of the body to the tumor cells and mention the main traits of cancer evolution in relation to etiology, pathogenesis, pathology, semiology, pathocronia and prognosis. They indicate the fundamental data which are necessary for cancer diagnosis.

[Detection of anti-Azotobacter antibodies in sera from tumor patients]. / Detección de anticuerpos anti-azotobacter en sueros humanos procedentes de enfermos tumorales.

Employing the agar-gel double immunodiffusion technique, the authors describe the presence of antibodies to a protein fraction existing in the supernatant of Azotobacter chroococcum cultures in a high percentage of blood sera from cancer patients. The small number of false positive results makes them think of the convenience of increasing the sensitivity of the procedure to valorate its usefulness for the early diagnosis of malignant tumors.

[Early diagnosis of cancer]. / El diagnóstico precoz del cancer.

Cancer diagnosis for localized tumors before any metastasis appears, or early diagnosis, could diminish from 60% to 50% the cancer deaths. The author describes the individual medical examination for early diagnosis and makes some comments about the causes of delay which depend on the patients, physicians, and disease itself, the medical administration and the economical possibilities.