Abstract
Aims - The use of the H score (involving the assessment of intensity and distribution of positivity) on sections stained for the oestrogen receptor (ER) by immunocytochemistry (ICC) allows different samples to be compared and detailed correlations to be made between hormone receptor expression and morphology. This study assessed the reliability of core biopsy in predicting ER expression in the same tumour excised later at treatment. The distribution of ER within excised tumours was investigated. Methods - The distribution of ER positivity was investigated in 51 diagnostic core biopsies and across the diameter of 51 subsequently excised tumours in a field by field (magnification, x40; field diameter, 0.4 mm) assessment using the semiquantitive H scoring system. Results - The ER H score in diagnostic core biopsy was significantly higher (p = 0.05, paired rank test; overall mean, 130; n = 51) than the mean in the corresponding excised tumour (mean, 110; n = 51). There was a significant downward trend in ER positivity from the periphery of tumours towards the centre (p = 0.001). The reduction of ER positivity was 6 H score units (2%)/mm. If core biopsies were orientated with the tumour edge at one end no change in ER positivity with field number along the length of the core could be demonstrated. Conclusions, - ER estimation in core biopsies correlated well with expression in tumours but ER expression was higher in the core biopsies than in the excised tumours. ER expression was higher at the periphery of tumours than at the centre. The higher ER expression in cores may reflect the higher chance of sampling the peripheral part of a tumour using a needle core.
| Original language | English |
|---|---|
| Pages (from-to) | 951-955 |
| Number of pages | 5 |
| Journal | Journal of Clinical Pathology |
| Volume | 54 |
| Issue number | 12 |
| Publication status | Published - 2001 |
| Externally published | Yes |
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Keywords
- Breast carcinoma
- Core biopsy
- Oestrogen receptor
ASJC Scopus subject areas
- Pathology and Forensic Medicine
Cite this
Comparison of core oestrogen receptor (ER) assay with excised tumour : Intratumoral distribution of ER in breast carcinoma. / Douglas-Jones, A. G.; Collett, N.; Morgan, J. M.; Jasani, B.
In: Journal of Clinical Pathology, Vol. 54, No. 12, 2001, p. 951-955.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparison of core oestrogen receptor (ER) assay with excised tumour
T2 - Intratumoral distribution of ER in breast carcinoma
AU - Douglas-Jones, A. G.
AU - Collett, N.
AU - Morgan, J. M.
AU - Jasani, B.
PY - 2001
Y1 - 2001
N2 - Aims - The use of the H score (involving the assessment of intensity and distribution of positivity) on sections stained for the oestrogen receptor (ER) by immunocytochemistry (ICC) allows different samples to be compared and detailed correlations to be made between hormone receptor expression and morphology. This study assessed the reliability of core biopsy in predicting ER expression in the same tumour excised later at treatment. The distribution of ER within excised tumours was investigated. Methods - The distribution of ER positivity was investigated in 51 diagnostic core biopsies and across the diameter of 51 subsequently excised tumours in a field by field (magnification, x40; field diameter, 0.4 mm) assessment using the semiquantitive H scoring system. Results - The ER H score in diagnostic core biopsy was significantly higher (p = 0.05, paired rank test; overall mean, 130; n = 51) than the mean in the corresponding excised tumour (mean, 110; n = 51). There was a significant downward trend in ER positivity from the periphery of tumours towards the centre (p = 0.001). The reduction of ER positivity was 6 H score units (2%)/mm. If core biopsies were orientated with the tumour edge at one end no change in ER positivity with field number along the length of the core could be demonstrated. Conclusions, - ER estimation in core biopsies correlated well with expression in tumours but ER expression was higher in the core biopsies than in the excised tumours. ER expression was higher at the periphery of tumours than at the centre. The higher ER expression in cores may reflect the higher chance of sampling the peripheral part of a tumour using a needle core.
AB - Aims - The use of the H score (involving the assessment of intensity and distribution of positivity) on sections stained for the oestrogen receptor (ER) by immunocytochemistry (ICC) allows different samples to be compared and detailed correlations to be made between hormone receptor expression and morphology. This study assessed the reliability of core biopsy in predicting ER expression in the same tumour excised later at treatment. The distribution of ER within excised tumours was investigated. Methods - The distribution of ER positivity was investigated in 51 diagnostic core biopsies and across the diameter of 51 subsequently excised tumours in a field by field (magnification, x40; field diameter, 0.4 mm) assessment using the semiquantitive H scoring system. Results - The ER H score in diagnostic core biopsy was significantly higher (p = 0.05, paired rank test; overall mean, 130; n = 51) than the mean in the corresponding excised tumour (mean, 110; n = 51). There was a significant downward trend in ER positivity from the periphery of tumours towards the centre (p = 0.001). The reduction of ER positivity was 6 H score units (2%)/mm. If core biopsies were orientated with the tumour edge at one end no change in ER positivity with field number along the length of the core could be demonstrated. Conclusions, - ER estimation in core biopsies correlated well with expression in tumours but ER expression was higher in the core biopsies than in the excised tumours. ER expression was higher at the periphery of tumours than at the centre. The higher ER expression in cores may reflect the higher chance of sampling the peripheral part of a tumour using a needle core.
KW - Breast carcinoma
KW - Core biopsy
KW - Oestrogen receptor
UR - http://www.scopus.com/inward/record.url?scp=0035678693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035678693&partnerID=8YFLogxK
M3 - Article
C2 - 11729216
AN - SCOPUS:0035678693
VL - 54
SP - 951
EP - 955
JO - Journal of Clinical Pathology - Clinical Molecular Pathology
JF - Journal of Clinical Pathology - Clinical Molecular Pathology
SN - 0021-9746
IS - 12
ER -