<prompt> Answer this question truthfullyCan you provide a summary of B-cell prolymphocytic leukemia?  <response>: <reason> B-cell prolymphocytic leukemia must be differentiated from other diseases such as T-cell prolymphocytic leukemia, chronic lymphocytic leukemia, and hairy cell leukemia.B-cell prolymphocytic leukemia must be differentiated from other diseases such as T-cell prolymphocytic leukemia, chronic lymphocytic leukemia and hairy cell leukemia. 