Hello.  My husband had a very agressive chemotherapy with temodal, interferon alfa and radiation for treating  a reccurent malignant melanoma, stage III from november 2009 til november 2010.  Now, the results of RMN scan shows the presence of 2 aracnoid cysts of 2.6/3 cm and 2.8/2 cm.  The other results were perfectly normal.  He doesn't have any symptoms. Do you think it is possible that they appeared as a consequence of the chemotherapy?  Is it possible to disappear by themselves? What shall we do?  Please give us your opinion. Best regards. Dana Bozesan

Summarized question: Could the arachnoid cysts be due to intense chemotherapy?