Abstract
Background
It is often difficult to pre-operatively diagnose ductal carcinoma in situ (DCIS) or intraductal papilloma (IDP). Current reports show that breast cancer frequently has numerical aberrations of chromosomes 1, 11 and 17. We investigated whether fluorescence in situ hybridization (FISH) analysis using three centromere-specific probes for chromosomes 1, 11 and 17 was fesible for diagnosing intraductal breast lesions.
Methods
Fine-needle aspiration specimens from 102 breast lesions including DCIS (10), invasive ductal carcinoma (IDC) (78), IDP (7), fibroadenoma (6) and mastopathy (1) were examined for numerical aberrations on chromosomes 1, 11, 17 using FISH. If over 15% of all cells showed one signal, the sample was judged monosomic. If over 20% of cells showed three or more signals, it was considered polysomic. If the specimen had an aberration of at least one chromosome, it was judged positive.
Result
Nine of 10 DCISs showed numerical aberrations of at least one chromosome whereas 65 of 78 IDCs and 2 of 14 benign lesions (containing 7 IDPs of which one case was positive) showed numerical aberrations on these chromosomes. The proportion of positive results was highest with DCIS. Moreover 6 out of 7 DCISs showed an aberration of all three chromosomes simultaneously and one case showed an aberration of two chromosomes. All aberrations in case of DCIS were polysomic while two benign lesions and 15 IDCs showed a monosomic pattern.
Conclusion
FISH may enable more accurate diagnosis of intraductal breast lesions.
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Abbreviations
- DCIS:
-
Ductal carcinomain situ
- IDP:
-
Intraductal papilloma
- FISH:
-
Fluorescence insitu hybridization
- FNA:
-
Fine needle aspiration biopsy
- LOH:
-
Loss of heterozygosity
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Komoike, Y., Motomura, K., Inaji, H. et al. Diagnosis of ductal carcinoma in situ (DCIS) and intraductal papilloma using fluorescence in Situ Hybridization (FISH) analysis. Breast Cancer 7, 332–336 (2000). https://doi.org/10.1007/BF02966400
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DOI: https://doi.org/10.1007/BF02966400