KARYOTYPIC CHANGES IN PHYLLODES TUMORS OF THE BREAST

• Type: Article in International Scientific Journal
• Date: 1994

Authors

DIETRICH, CU (Author) Other; PANDIS, N (Author) Other; BARDI, G (Author) Other; Manuel R Teixeira (Author) Other; SOUKHIKH, T (Author) Other; PETERSSON, C (Author) Other; ANDERSEN, JA (Author) Other; HEIM, S (Author) Other

Journal

Title: Cancer Genetics and Cytogenetics

Vol. 78

Pages: 200-206

ISSN: 0165-4608

Publisher: Elsevier B.V.

Indexing

ISI Web of Knowledge - 22 Citations

Scopus - 26 Citations

Other information

Authenticus ID: P-008-QAD

DOI: 10.1016/0165-4608(94)90090-6

Abstract (EN): Cytogenetic analysis of short-term cultures of five phyllodes tumors of the breast-classified as benign (one tumor), borderline malignant (two tumors removed from the same breast in 1998 and 1993), and malignant (two tumors) - revealed clonal changes with simple structural abnormalities in the benign tumor, the borderline malignant tumors, and one malignant tumor in which benign areas and areas of borderline malignancy were also present. In contrast, the malignant tumor without admired borderline malignant or benign areas had a complex karyotype. The karyotype of the benign phyllodes tumor was 46,XX,del(12)(p11p12)/46,XX,t(8;18)(p11;p11)/46,XX. The first borderline malignant phyllodes tumor had t(3;20)(p21;q13) as the sole abnormality. When the tumor recurred, this was no longer the only clone detected and the tumor karyotype was now 46,XX,t(3;20)(p21;q13)/46,XX,t(9;10)(p22;q22)/46,XX,t(1;8)(p34; q24)/46,XX,de1(11)(q22-23)/46,XX. The malignant/borderline malignant/benign tumor had t(1;6)(p34;p22) as the sole clonal abnormality. Finally, the karyotype of the malignant phyllodes tumor which contained no benign or borderline malignant areas was 42,XX,der(1)t(1;4)(q21;q21),der(3)t(3;17)(q29;q21), -4,i(8) (q10),-10,-13,i(13)(q10),der(14)t(1;14)(q21;p11),der(14)t(4;14)(p12;p11),-17/80-90,idemx2,+del(1)(q12),+i(1) (p10),+dic(5;5)(p14;p14),+i(6)(p10),+del(7)(p11),+dup(7)(q11q36),+i(15)(q10),inc/46,XX. The findings indicate some cytogenetic similarities between benign/borderline malignant phyllodes tumors and fibroadenomas of the breast, presumably reflecting similar pathogenetic mechanisms in the two types of mixed-lineage tumors.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7