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(A) Preoperative view of the dermoid cyst in case 3. A round, cystic mass measuring approximately 5×6 cm in size is seen in the right posterior aspect of the ear and auriculocephalic sulcus. (B) The cystic wall is lined by squamous epithelium and keratin materials. In addition, sebaceous gland, hair follicle, and sweat glands are also seen (H&E, ×200).
