case_images: PMC11423840_01
case_images: Ultrasonography images show developmental mammary glands. (a) Two weeks after flumatinib; (b) One and a half months after flumatinib. The red arrows indicate enlarged gland.
case_images: PPA-18-1961-g0001.jpg
case_images: PMC11423840_01_PPA-18-1961-g0001.jpg
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case_images: Two weeks later, he experienced pain in both breasts, and ultrasonography on 2024.2.19 showed mammary gland hyperplasia, left 0.26 cm, right 0.3 cm (Figure 1a). Repeat breast ultrasonography revealed significant enlargement of the mammary glands, left 3.4x0.26 cm, right 4.3x0.3 cm, and gynecomastia was confirmed (Figure 1b).