TY - JOUR
T1 - Karyotypic characteristics of borderline malignant tumors of the ovary
T2 - Trisomy 12, trisomy 7, and r(1) as nonrandom features
AU - Pejovic, Tanja
AU - Iosif, Constantin S.
AU - Mitelman, Felix
AU - Heim, Sverre
N1 - Funding Information:
Supported by grants from the Swedish and Norwegian Cancer Societies, The Swedish Medical Society, and Berta Kamprad's Foundation for Cancer Research.
PY - 1996/12
Y1 - 1996/12
N2 - Clonal karyotypic abnormalities were detected in five of 14 cytogenetically analyzed borderline malignant ovarian tumors of clinical stages I-II. One mucinous and one seropapillary tumor had trisomy 7 and r(i)(p36q42) as the sole chromosome abnormality, respectively. Trisomy 12 was found in the remaining three cases. It was the only change in one mucinous and one serous tumor, whereas the third, a seropapillary borderline tumor, had the karyotype 49,XX,+5,+8,+12. These findings, especially when collated with those of previous reports on ovarian borderline tumor cytogenetics, indicate that +12 is the most consistent chromosomal aberration in this group of neoplasms and that also +7 and r(1) are nonrandom features. From the karyotypic point of view, benign ovarian tumors and well-differentiated carcinomas are similar to borderline ovarian tumors, with the possible exception that the former have no tendency to form r(1). Highly malignant carcinomas, on the other hand, are typically much more complex. Chromosome level changes therefore cannot account for the putative phenotypic passage through the most innocuous tumor stages as epithelial ovarian neoplasms go from benign to fully malignant.
AB - Clonal karyotypic abnormalities were detected in five of 14 cytogenetically analyzed borderline malignant ovarian tumors of clinical stages I-II. One mucinous and one seropapillary tumor had trisomy 7 and r(i)(p36q42) as the sole chromosome abnormality, respectively. Trisomy 12 was found in the remaining three cases. It was the only change in one mucinous and one serous tumor, whereas the third, a seropapillary borderline tumor, had the karyotype 49,XX,+5,+8,+12. These findings, especially when collated with those of previous reports on ovarian borderline tumor cytogenetics, indicate that +12 is the most consistent chromosomal aberration in this group of neoplasms and that also +7 and r(1) are nonrandom features. From the karyotypic point of view, benign ovarian tumors and well-differentiated carcinomas are similar to borderline ovarian tumors, with the possible exception that the former have no tendency to form r(1). Highly malignant carcinomas, on the other hand, are typically much more complex. Chromosome level changes therefore cannot account for the putative phenotypic passage through the most innocuous tumor stages as epithelial ovarian neoplasms go from benign to fully malignant.
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U2 - 10.1016/S0165-4608(96)00169-0
DO - 10.1016/S0165-4608(96)00169-0
M3 - Article
C2 - 8976364
AN - SCOPUS:0030455751
SN - 0165-4608
VL - 92
SP - 95
EP - 98
JO - Cancer Genetics and Cytogenetics
JF - Cancer Genetics and Cytogenetics
IS - 2
ER -