Neoplasmas

Neoplasms, commonly referred to as tumors, are abnormal growths of cells. This abnormal proliferation occurs when cells divide and grow excessively without the normal regulatory mechanisms that control cell growth and division. The origin of a neoplasm is a change in the genetic material of a cell, leading to uncontrolled division. These changes can be spontaneous or induced by environmental factors.

Neoplasms can be classified into two broad categories: benign and malignant. Benign neoplasms are generally non-cancerous. They tend to grow slowly, remain localized, and do not invade surrounding tissues or spread to distant parts of the body. While they can cause problems due to their size or location, they are typically not life-threatening and can often be surgically removed.

Malignant neoplasms, on the other hand, are cancerous. They are characterized by their ability to invade surrounding tissues and spread to other parts of the body through a process called metastasis. This uncontrolled growth and spread make malignant neoplasms dangerous and potentially life-threatening. The characteristics of a malignant neoplasm include rapid growth, irregular cell structure, and the ability to invade blood vessels and lymphatic channels. The study and treatment of neoplasms fall under the medical discipline of oncology.