Evolution of an ovarian endometriotic cyst into clear cell carcinoma with squamous differentiation across two pregnancies: A case report

This case highlights an ovarian cyst that measured 8 cm during the second pregnancy but was only 2 cm in diameter during the first pregnancy, ultimately diagnosed as clear cell carcinoma. Although ovarian malignancies during pregnancy are rare, benign-appearing cysts should not be overlooked. Increased vigilance is warranted to ensure timely diagnosis and appropriate management of such rare but clinically significant presentations.