Infrared thermography breast cancer detection remains a topic of significant interest as clinicians seek non-invasive adjuncts to traditional imaging. A recent analytical study evaluated the outcomes of infrared thermography (IT) in women with suspected malignancy. Specifically, the research focused on the diagnostic performance of thermal sensors compared to histopathological findings. While mammography remains the gold standard, this study explores whether thermal signals provide valuable clinical data in high-risk scenarios.

Methodological Approach to Thermal Imaging

The researchers conducted a prospective, longitudinal study involving women aged 15 years and older. The team specifically included participants with BI-RADS 4 classifications. Before performing biopsies, the clinicians measured breast temperature using two specialized thermographic sensors. Subsequently, they recorded histopathological results and categorized them into inflammatory lesions, fibrocystic disease, and malignant tumors. Notably, the cohort predominantly consisted of women with BI-RADS 4A findings.

Key Outcomes and Statistical Insights

Among the 104 women analyzed, ductal carcinoma emerged as the most frequent malignant lesion. The mean age of the participants was approximately 47.7 years. Furthermore, the study identified that the right breast was more frequently affected in 56% of cases. Most importantly, the research pinpointed a specific thermal threshold for detecting malignancy. Using a cutoff point of ≥ 33.4 °C, the test achieved a sensitivity of 0.69 and a specificity of 0.63. Additionally, the area under the curve (AUC) was calculated at 0.65, indicating moderate diagnostic accuracy.

Assessing Infrared Thermography Breast Cancer Risk Cutoffs

The statistical analysis revealed that reaching or exceeding the 33.4 °C threshold correlates with a 4-fold increased risk of malignancy. Consequently, this temperature serves as a critical marker for clinicians interpreting thermal data. Although the sensitivity remains moderate, the odds ratio of 4.16 suggests that abnormal heat signatures are significant indicators of underlying pathology. Therefore, clinicians might consider these thermal outcomes alongside traditional imaging to prioritize further diagnostic steps for BI-RADS 4 patients.

The Role of Thermography in Clinical Practice

In many Indian clinical settings, access to high-end mammography is often limited by cost and equipment availability. Infrared thermography offers a portable, radiation-free alternative that may serve as an adjunctive screening tool. However, current guidelines emphasize that IT should not replace mammography or ultrasound. Instead, it serves best as a supplementary modality to improve risk stratification in resource-constrained environments. Moreover, it provides a non-invasive option for younger women or those with dense breast tissue where mammography may be less effective.

Frequently Asked Questions

Can infrared thermography replace a screening mammogram?

No, infrared thermography is not a substitute for mammography. While it can detect metabolic heat changes, it lacks the high sensitivity required for standalone screening and is only used as a supplementary tool.

What does a temperature of 33.4°C indicate in breast thermography?

A breast temperature of 33.4°C or higher is associated with a significantly increased risk of malignancy. In this specific study, women exceeding this cutoff showed a 4-fold increase in the risk of a malignant lesion.

Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice or a professional recommendation. Clinical decisions should be based on a comprehensive patient evaluation. Refer to the latest local and national guidelines for clinical practice.

References

Luna-Patiño GA et al. [Infrared thermography outcomes in women with suspected breast cancer]. Rev Med Inst Mex Seguro Soc. 2026 May 06. doi: 10.5281/zenodo.18715353. PMID: 42090722.

Goñi A et al. Breast thermography: a systematic review and meta-analysis. PMC. 2024 Nov 28. doi: 10.1186/s13643-024-02708-9.

Weerarathna IN et al. Comparative Evaluation of Infrared Thermography and Mammography in the Detection of Breast Cancer. PMC. 2026 Jan 09. doi: 10.1155/ijbc/6845966.