Overrepresentation of 18q in diffuse large B-cell lymphomas. CGH profiles of cases 1 to 8 are shown from (a) to (h), in which a gain or a high-level amplification in 18q was detected. The cutoff values for gains and losses are 1.17 and 0.85, respectively. The region was considered to be highly amplified if the profile exceeded the value of 1.5 (marked with an arrow). In case nos. 1, 4, 6, 7, and 8 (a, d, f, g, and h) the 18q was found to be highly amplified. Normal profile of a healthy individual is shown on the left.