Background
This is a rare lymphoproliferative disorder. For many years, it was thought to be a disorder of T-lymphocytes. With more sophisticated examination, this disorder is currently believed to be a T-cell rich B-cell lymphoproliferative disorder, with many cases caused by neoplastic transformation of B-lymphocytes by Epstein-Barr virus infection.
The lung is the most frequently involved organ affected in nearly all patients. Other organs involved in LYG include skin, kidneys, central nervous system, upper respiratory tract, and gastrointestinal tract. Surprisingly, the lymphoid organs are spared. The clinical behavior of LYG varies widely from an indolent process to an aggressive large cell lymphoma.
OUTLINE
EPIDEMIOLOGY CHARACTERIZATION AGE RANGE-MEDIAN 4-6 decades SEX (M:F)2.5:1
PROGNOSIS AND TREATMENT CHARACTERIZATION Prognostic Factors Survival Multiple organ involvement usually leads to death within a year of 2/3 of patients Katzenstein AA, Carrington CB, Liebow AA. Lymphomatoid granulomatosis: a clinicopathologic study of 152 cases. Cancer 1979;43:360–73.
Liebow AA, Carrington CRB, Friedman PJ. Lymphomatoid granulomatosis. Hum Pathol 1972;3:457–558.
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Last Updated 5/24/2004
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