True about struma ovarii -a) Ectopic thyroid tissueb) Ectopic ovarian tissuec) It is benignd) It is included in teratoma: (A) abc, (B) ad, (C) bc, (D) acd
Answer is D. 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.