How is presentation of benign cystic teratomas?

➢ About 90% are unilateral, with the right side more commonly affected. Rarely do these cystic masses exceed 10 cm in diameter. ➢ On cut section, they often are filled with sebaceous secretion and matted hair that, when removed, reveal a hair-bearing epidermal lining ( ➢ Sometimes there is a nodular projection from which teeth protrude. ➢ Occasionally, foci of bone and cartilage, nests of bronchial or gastrointestinal epithelium, or other tissues are present. ➢ These neoplasms sometimes produce infertility and are prone to undergo torsion (in 10%–15% of cases. ➢ Limbic encephalitis, may develop in women with teratomas containing mature neural tissue and often remits with tumor resection (Paraneoplastic complication.). ➢ Malignant transformation, usually to a squamous cell carcinoma, is seen in about 1% of cases.