Fig. 8
From: Role of high-resolution ultrasound in the assessment of abdominal wall masses and mass-like lesions
a–c Ultrasound and CT images for a case of rectus sheath hematoma. a An ultrasound image showing anechoic (cyst-like) lesion implicating the left rectus abdominus muscle (between the white arrows). b An ultrasound image for the same patient at a lower level showing internal septations with layering low-level internal echoes, and possible fluid levels were seen likely due to cellular sedimentation (between the white arrows). c An axial CT image confirming the findings that were present in a and b