A case of pituitary adenoma with 58 chromosomes.

Chromosome analysis was performed on a growth hormone secreting pituitary adenoma. G-banding analysis showed a stem line with 58 chromosomes including numerical deviations of pairs #3, #5, #7, #9, #11, #12, #13, #17, #19, #20, and gonosomes was found. These findings add new evidence of the nonrandom involvement of C and F group chromosomes in numerical deviations in this tumor type.