Gigantic occipital epidermal cyst in a 56-year-old female: A case report

Figure 2 The computed tomography and ultrasonic image. A: The length and width of cyst of axial computed tomography (CT); B: The length and width of cyst of sagittal CT; C: A mass can be found at the subcutaneous distance of 2.3 mm from the body surface (ultrasonic image); D: The volume of the mass is 38 mm × 87 mm × 90 mm (ultrasonic image); E: The occipital mass is a solid mass with low echo, regular shape, clear boundary, complete envelope and less uniform internal echo (ultrasonic image).