case_images: PMC7276616_01
case_images: Demonstrated on ultrasound imaging 1 month before the initial follow-up to presenting surgeon/ultrasound of the left anterior wrist area.
case_images: JOCR-9-67-g001.jpg
case_images: PMC7276616_01_JOCR-9-67-g001.jpg
case_images: F1
case_images: The image of the left anterior distal forearm on ultrasound is displayed in Fig. 1.
case_images: Sagittal view of the anterior left forearm mass demonstrating the muscle variant on magnetic resonance imaging (MRI) T1 without contrast 10 days after physical exam/MRI of the left upper extremity sagittal view.
case_images: JOCR-9-67-g002.jpg
case_images: PMC7276616_01_JOCR-9-67-g002.jpg
case_images: F2
case_images: The abnormal muscle variant is displayed in the sagittal view T1 MRI in (Fig. 2), it is displayed in the coronal view T1 MRI in (Fig. 3), and it is displayed in the coronal view T2 MRI in (Fig. 4).
case_images: Coronal view of the anterior left forearm mass demonstrating the muscle variant on magnetic resonance imaging T2 without contrast 10 days after physical exam/MRI of the anterior left forearm coronal cut T2.
case_images: JOCR-9-67-g004.jpg
case_images: PMC7276616_01_JOCR-9-67-g004.jpg
case_images: F4
case_images: The abnormal muscle variant is displayed in the sagittal view T1 MRI in (Fig. 2), it is displayed in the coronal view T1 MRI in (Fig. 3), and it is displayed in the coronal view T2 MRI in (Fig. 4).