Cytogenetic findings in a human malignant melanoma metastatic to the brain

Cytogenetic analysis by G-banding of direct and preparations of a malignant melanoma metastatic to the brain in vitro showed a pseudodiploid modal chromosome number, including five marker chromosomes, one of which was an i(6p). These results agree with those recently reported about the preferential involvement of chromosome #6 in malignant melanoma.