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6 out of 6

Abscopal effect is related to which organ? (PNQ)

A Liver
B Lymph node

C Spleen
D All of the above

Ans. C


Recent Advances: Abscopal effect (Hari- 18th Pg.-471)

1. Splenectomy is an effective secondary or tertiary treatment for two chronic B cell leukemias, hairy cell leukemia and prolymphocytic leukemia, and for the very rare splenic mantle cell or marginal zone lymphoma.

2. Splenectomy in these diseases may be associated with significant tumor regression in bone marrow and other sites of disease.

3. Similar regressions of systemic disease have been noted after splenic irradiation in some types of lymphoid tumors, especially chronic lymphocytic leukemia and prolymphocytic leukemia.

4. This has been termed the abscopal effect. Such systemic tumor responses to local therapy directed at the spleen suggest that some hormone or growth factor produced by the spleen may affect tumor cell proliferation.