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

Figure 1 Preoperative manifestation, intraoperative presentation and pathology results. A: A general view of epidermal cyst; B: The long diameter of epidermal cyst; C: The wide diameter of epidermal cyst; D: Height of epidermal cyst; E and F: Image of the cyst after incision; G: Layered cutinise (the pathological results indicated epidermal cyst); H: Squamous epithelium (the pathological results indicated epidermal cyst).

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).