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Fig. 4 | Cancer Imaging

Fig. 4

From: Thyroid imaging reporting and data system with MRI morphological features for thyroid nodules: diagnostic performance and unnecessary biopsy rate

Fig. 4

A 51-year-old female with papillary thyroid carcinoma in the left lobe (a, b, c and d). Axial diffusion-weighted imaging (DWI) (a) and apparent diffusion coefficient (ADC) map (b) show restricted diffusion of the lesion (white arrow). The delayed phase contrast-enhanced T1-weighted imaging (c) shows reversed halo sign (white arrow). The ultrasound image (d) displays a lesion initially classified as ACR-TIRADS grade TI-RADS 4, which has been upgraded to the improved ACR-TIRADS grade of TI-RADS 5, indicating the recommendation for fine needle aspiration biopsy. A 67-year-old female with adenomatous goiter in the right lobe (e, f, g and h). Axial DWI (e) and ADC (f) show absence of restricted diffusion (white arrow). The delayed phase contrast-enhanced T1-weighted imaging (g) shows a relatively homogeneous enhancement pattern (white arrow). The ultrasound image (H) of the lesion, initially classified as ACR-TIRADS grade TI-RADS 4 but subsequently revised to an improved ACR-TIRADS grade TI-RADS 3, obviating biopsy

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Cancer Imaging

ISSN: 1470-7330

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