Response criteria for malignant lymphoma.
Summary of "Response criteria for malignant lymphoma."
A proven criterion for assessing tumor response is the increase in tumor size. Unlike most tumors, lymph nodes are normal anatomical structures and can be measured even when benign. The International Working Group (IWG) criteria for lymphomas therefore combine morphological with functional (positron emission tomography PET) and biopsy (bone marrow biopsy) parameters. The IWG criteria have been established as the standard in clinical trials and take nodal involvement, spleen, liver involvement as well as bone marrow involvement into account, which makes the response evaluation complex. STANDARD RADIOLOGICAL
This involves an investigator-dependent, non-standardized and poorly reproducible estimation of tumor response to therapy. METHODICAL
The formulation of standardized response categories for malignant lymphomas.
The aim was to produce uniform and standardized criteria for application in medication studies.
Established as the standard for medication studies but too time-consuming for practical application. PRACTICAL
An improved practicability can be achieved by incorporating a computer-assisted evaluation program.
E010 - Radiologie, Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 280, 69120, Heidelberg, Deutschland, email@example.com.
This article was published in the following journal.
Name: Der Radiologe
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22418972
- DOI: http://dx.doi.org/10.1007/s00117-011-2256-1
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Medical and Biotech [MESH] Definitions
A systemic, large-cell, non-Hodgkin, malignant lymphoma characterized by cells with pleomorphic appearance and expressing the CD30 ANTIGEN. These so-called "hallmark" cells have lobulated and indented nuclei. This lymphoma is often mistaken for metastatic carcinoma and MALIGNANT HISTIOCYTOSIS.
A group of disorders having a benign course but exhibiting clinical and histological features suggestive of malignant lymphoma. Pseudolymphoma is characterized by a benign infiltration of lymphoid cells or histiocytes which microscopically resembles a malignant lymphoma. (From Dorland, 28th ed & Stedman, 26th ed)
A group of lymphomas exhibiting clonal expansion of malignant T-lymphocytes arrested at varying stages of differentiation as well as malignant infiltration of the skin. MYCOSIS FUNGOIDES; SEZARY SYNDROME; LYMPHOMATOID PAPULOSIS; and PRIMARY CUTANEOUS ANAPLASTIC LARGE CELL LYMPHOMA are the best characterized of these disorders.
Malignant lymphoma composed of large B lymphoid cells whose nuclear size can exceed normal macrophage nuclei, or more than twice the size of a normal lymphocyte. The pattern is predominantly diffuse. Most of these lymphomas represent the malignant counterpart of B-lymphocytes at midstage in the process of differentiation.
B-cell lymphoid tumors that occur in association with AIDS. Patients often present with an advanced stage of disease and highly malignant subtypes including BURKITT LYMPHOMA; IMMUNOBLASTIC LARGE-CELL LYMPHOMA; PRIMARY EFFUSION LYMPHOMA; and DIFFUSE, LARGE B-CELL, LYMPHOMA. The tumors are often disseminated in unusual extranodal sites and chromosomal abnormalities are frequently present. It is likely that polyclonal B-cell lymphoproliferation in AIDS is a complex result of EBV infection, HIV antigenic stimulation, and T-cell-dependent HIV activation.