Binucleated cells in a human renal cell carcinoma with 34 chromosomes

Cytogenetic analysis of a human renal cell carcinoma revealed a near-haploid chromosome number of 34 with the loss of one chromosome #1, #2, #3, #6, #7, #9, #10, #12, #13, #17, #18, and #21. Binucleated cells were observed in histologic, cytologic, as well as in cytogenetic preparations. The paper briefly discusses the binucleation-polyploidization as a possible compensatory mechanism to maintain the genetic balance in near-haploid cells.