Bitencourt AGV, Lima ENP, Chojniak R, Marques EF, de Souza JA, Graziano L, Andrade WP, Osório CABDT. Correlation between PET/CT results and histological and immunohistochemical findings in breast carcinomas.
Radiol Bras 2015;
47:67-73. [PMID:
25741051 PMCID:
PMC4337160 DOI:
10.1590/s0100-39842014000200006]
[Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 12/12/2013] [Indexed: 01/09/2023] Open
Abstract
Objective
To correlate the results of 18F-fluoro-2-deoxy-D-glucose
(18F-FDG) positron emission tomography/computed tomography (PET/CT)
performed with a specific protocol for assessment of breasts with
histological/immunohistochemical findings in breast carcinoma patients.
Materials and Methods
Cross-sectional study with prospective data collection, where patients with
biopsy-confirmed breast carcinomas were studied. The patients underwent PET/CT
examination in prone position, with a specific protocol for assessment of breasts.
PET/CT findings were compared with histological and immunohistochemical data.
Results
The authors identified 59 malignant breast lesions in 50 patients. The maximum
diameter of the lesions ranged from 6 to 80 mm (mean: 32.2 mm). Invasive ductal
carcinoma was the most common histological type (n = 47; 79.7%).
At PET/CT, 53 (89.8%) of the lesions demonstrated anomalous concentrations of
18F-FDG, with maximum SUV ranging from 0.8 to 23.1 (mean: 5.5). A
statistically significant association was observed between higher values of
maximum SUV and histological type, histological grade, molecular subtype, tumor
diameter, mitotic index and Ki-67 expression.
Conclusion
PET/CT performed with specific protocol for assessment of breasts has demonstrated
good sensitivity and was associated with relevant histological/immunohistochemical
factors related to aggressiveness and prognosis of breast carcinomas.
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