True about struma ovarii -a) Ectopic thyroid tissueb) Ectopic ovarian tissuec) It is benignd) It is included in teratoma
Struma ovarii is the presence of mature thyroid tissue as a major cellular component in an ovarian tumor.
Ovarian tumor is nearly always a teratoma.
Most of the tumors are benign and in some cases thyrotoxicosis develops.
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