Which of the following is false for the given specimen?

The specimen is of a Dermoid cyst.Most benign teratomas are cystic and are often referred to as dermoid cysts because they are almost always lined by skin-like structures. Cystic teratomas are usually found in young women during the active reproductive years.Benign teratomas are bilateral in 10% to 15% of cases.Characteristically they are unilocular cysts containing hair and sebaceous material. In most cases, tissues from other germ layers can be identified, such as cailage, bone, thyroid, and neural tissue. About 1% of the dermoids undergo malignant transformation, most commonly to squamous cell carcinoma, but also to other cancers as well (e.g., thyroid carcinoma, melanoma).Robbins pathology 9e 1029