A palpable tumor, conspicuous blood levels, a swollen lymph node - all this can be a sign of a possible tumor disease.
Although in most cases no cancer is behind the symptoms, an accurate diagnosis can often only be made on the basis of a tissue sample / biopsy. For their removal is not always a major surgery needed: The so-called biopsy provides even with comparatively small and less burdensome interventions sufficient material to allow microscopic and / or molecular biology investigations.