CT features associated with EGFR mutations and ALK positivity in patients with multiple primary lung adenocarcinomas

Cancer Imaging : the Official Publication of the International Cancer Imaging Society
Xiaoyu HanHeshui Shi

Abstract

In multiple primary lung adenocarcinomas (MPLAs), the relationship between imaging and gene mutations remains unclear. This retrospective study aimed to identify the correlation of epidermal growth factor receptor (EGFR) mutations and anaplastic lymphoma kinase (ALK) status with CT characteristics in MPLA patients. Sixty-seven patients (135 lesions) with MPLAs confirmed by pathology were selected from our institution. All subjects were tested for EGFR mutations and ALK status and underwent chest CT prior to any treatment. The criteria for MPLA definitions closely adhered to the comprehensive histologic assessment (CHA). Among MPLA patients, EGFR mutations were more common in females (p = 0.002), in those who had never smoked (p = 0.010), and in those with less lymph node metastasis (p < 0.001), and the tumours typically presented with ground-glass opacity (GGO) (p = 0.003), especially mixed GGO (p < 0.001), and with air bronchograms (p = 0.012). Logistics regression analysis showed that GGO (OR = 6.550, p = 0.010) was correlated with EGFR mutation, while air bronchograms were not correlated with EGFR mutation (OR = 3.527, p = 0.060). A receiver operating characteristic (ROC) curve yielded area under the curve (AUC) values of 0....Continue Reading

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Citations

Jan 9, 2021·Cancer Imaging : the Official Publication of the International Cancer Imaging Society·Shingo IwanoShinji Naganawa

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Methods Mentioned

BETA
surgical resection
biopsy

Software Mentioned

SPLA
CARE Dose

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