| gene expression regulation, neoplastic | Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in neoplastic tissue. (12 Dec 1998) |
|---|---|
| cell transformation, neoplastic | Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill. (12 Dec 1998) |
| pregnancy complications, neoplastic | Neoplasms occurring during the course of pregnancy, or pregnancy during the course of a neoplastic disease. (12 Dec 1998) |
| neoplastic | <oncology, pathology> Pertaining to or like a neoplasm with new and abnormal growth, pertaining to neoplasia with the formation of a neoplasm. Origin: Gr. Plassein = to form (18 Nov 1997) |
| neoplastic arachnoiditis | Infiltration of subarachnoid space by neoplastic cells, typically medulloblastoma or metastatic carcinoma. Synonym: neoplastic arachnoiditis. (05 Mar 2000) |
| neoplastic endocrine-like syndromes | Endocrine syndromes due to hormone production by neoplasms of non-endocrine tissue, or by other than the usual endocrine tissues. They are often the first indication of a previously undetected neoplasm. (12 Dec 1998) |
| neoplastic meningitis | Infiltration of subarachnoid space by neoplastic cells, typically medulloblastoma or metastatic carcinoma. Synonym: neoplastic arachnoiditis. (05 Mar 2000) |
| neoplastic processes | The pathological mechanisms and forms taken by tissue during degeneration into a neoplasm and its subsequent activity. (12 Dec 1998) |
| neoplastic syndromes, hereditary | The condition of a pattern of malignancies within a family, but not every individual's necessarily having the same neoplasm. Characteristically the tumour tends to occur at an earlier than average age, individuals may have more than one primary tumour, the tumours may be multicentric, usually more than 25 percent of the individuals in direct lineal descent from the proband are affected, and the cancer predisposition in these families behaves as an autosomal dominant trait with about 60 percent penetrance. (12 Dec 1998) |
| African endomyocardial fibrosis | Fibrosis of the inner layers of the myocardium, often including the endocardium, causing diastolic restriction of the heart; indigenous to East Africa. (05 Mar 2000) |
| radiation fibrosis | The formation of scar tissue as a result of radiation therapy to the lung. (12 Dec 1998) |
| mediastinal fibrosis | <radiology> Histoplasmosis most common cause, can cause superior vena cava obstruction (12 Dec 1998) |
| replacement fibrosis | The formation of fibrous tissue that occupies sites where various other cells and tissues have become atrophied, or degenerated and necrotic. (05 Mar 2000) |
| retroperitoneal fibrosis | <radiology> Ureters tapered or obstructed, most severe at L4-5, ureters deviated medially, Treatment: symptomatic; steroids have ? long-term benefit Differential diagnosis: malignancy, lymphoma (especially Hodgkin's), metastasis from colon and breast, retroperitoneal sarcoma, drugs, methysergide (Sansert), haemorrhage, aortic aneurysm, trauma or surgery, inflammation, Crohn's disease, diverticulitis, pancreatitis, extravasated urine, radiation (12 Dec 1998) |
| pericentral fibrosis | Fibrosis occurring around the central veins in the hepatic lobules. (05 Mar 2000) |