Fig. 1From: Temporary spontaneous regression of male breast cancer: a case reportUltrasonography findings. a On the patient’s first visit to our hospital, we observed a well-circumscribed, lobulated and hypoechoic lesion measuring 12 mm × 10 mm × 8 mm. b A week after the patient’s first visit, we observed a reduction in tumor size to 8 mm × 7 mm × 4.5 mmBack to article page