dermoid cysts of the ovary contain various tissues, including bone, teeth, skin, cartilage, muscle, and even thyroid tissue (struma ovarii). Cervical Incompetence: In some females, the internal os is incompetent and leads to repeated abortions (two or more painless abortions between 16 and 28 weeks), usually in the second trimester. There may be many causes, including infections, hypertension, diabetes, and others. However, if the cervix is incompetent, surgical treatment (Shirodkar/McDonald) to tie the…
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