Neoplasms – biological phenomenon

Neoplasm is the cause of a double disease body, i.e. with two faces (Janus disease), which means both presence cancer cells and secondary disorders immune system function caused by them. The second possibility temporary decrease in immunity, e.g. influenza, revealing neoplastic disease. Neoplasms are induced genetic epigenetic factors (Fig. 1), giving different types mono- polyclonal metastases cross-spreading 2). Recently, exosomes have been ascribed an important role formation metastases. They transfer information between normal horizontal „teach” myeloid to move pre-metastatic niche metastatic deposit. In carcinogenesis, main played long-lived stem cells, as well differentiated after they gained ability self-renew, cells. paper also presents examples neoplasms accompanied second, primary neoplasm same or vicinity. Multiple malignances (MPM) associated them described. With help so-called strange attractor, attempt was made describe behavior cancers connection phenomenon deterministic chaos based on process entropy. Distinguishing chaotic stochastic (random) systems very difficult biology.