Tumor | definition of tumor by Medical dictionary
medical-dictionary.thefreedictionary.com › tumorlipoid cell tumor of ovary a usually benign ovarian tumor composed of eosinophilic cells or cells with lipoid vacuoles; it causes masculinization. tumor lysis syndrome severe hyperphosphatemia, hyperkalemia, hyperuricemia, and hypocalcemia occurring after effective induction chemotherapy of rapidly growing malignant neoplasms; thought to be due to release of intracellular products after cell lysis.
Tumor: MedlinePlus Medical Encyclopedia
medlineplus.gov › ency › articleA tumor is an abnormal growth of body tissue. Tumors can be cancerous (malignant) or noncancerous (benign). Causes In general, tumors occur when cells divide and grow excessively in the body. Normally, the body controls cell growth and division. New cells are created to replace older ones or to perform new functions.