Neoplasia Neoplasia is the development of new, abnormal tissue. Neoplasia is the development of a cancerous tumor. It is characterized by the uncontrolled, progressive multiplication of cells and is irreversible. It is thought that the cells of a neoplasia are all descended from a single mutated cell and therefore all carry the same genetic mutation. Neoplasms, or cancer tumors, are divided into two categories; those that are and those that are . Benign tumors tend to be localized and slow growing. Usually benign tumors cause no dysfunction in a tissue and do not spread to other regions of the body. Benign tumors do not tend to reoccur once they are removed. Malignant tumors are fast growing, invasive growths that cause dysfunction in affected tissues. Malignant tumors tend to readily, meaning they easily spread to distant locations in the body. Even with aggressive and rapid treatment malignant neoplasia usually results in death. Common forms of neoplasia include:
Tissue Adaptations
Ossification Ossification describes the conversion of connective tissue into bone. Ossification can be a physiological process through which bone grows and repairs. Pathological ossification occurs in response to chronic irritation of connective tissue. Repeated trauma to joint capsules and ligaments causes a process called to occur at the periphery of the joint. Conditions such as ringbone and side bone are a result of pathologic ossification. Calcification Calcification describes the deposition of calcium, along with small amounts of other minerals, into soft tissue. Calcification is a pathological process and is usually quite painful. Calcium can be deposited into muscle, ligaments, tendons, the periosteum, and other soft tissues. There are two types of calcification. The first type is dystrophic calcification . In this process calcium is deposited into tissue. There are no anomalies in blood calcium levels associated with dystrophic calcification. The second type of calcification is metastatic calcification . Metastatic calcification involves the deposition of calcium into normal, healthy tissue as a result of . Hypercalcemia is a condition where the circulating levels of calcium ion are higher than normal. Common causes of hypercalcemia include renal failure and lymphoma.
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