mortem room. Many of the described examples have shown no local malignancy, displacing and not infiltrating, and remaining very definitely encapsuled. This has given -rise to the statement that absence of haematuria is charac-,teristic of this growth. This statement is, however, much too absolute. Authorities whose records cannot be ques. 'tioned-Israel, for example-have described series of such eoases in many of which haematuria was a prominent eymptom.
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Wilfred Trotter (1910) studied this question.