Unusual Presentation of Hypothyroidism in a Pregnant Woman,Mimicking Gestational Trophoblastic Neoplasm

Hypothyroidism is a common health issue worldwide with varying clinical manifestations. We report a woman who experiencedan incomplete abortion and undiagnosed hypothyroidism who was referred to the oncologist with the suspicion of metastaticgestational trophoblastic neoplasm (GTN). A 29-year-old woman with incomplete abortion was referred to an oncologist forpossible GTN due to persistent active vaginal bleeding, an elevated beta human chorionic gonadotropin (hCG), abnormal cervicalinspection exam, abnormal liver function tests, ovarian enlargement, ascites, and a pleural effusion. She was found to havehypothyroidism in further work-up. She was managed with thyroid hormone replacement therapy and her condition improvedafter 6 weeks. Complete resolution of the ovarian mass and pericardial and pleural effusion was achieved. This case describes animportant experience; hypothyroidism should be considered in the differential diagnosis of any woman with an incomplete abortionpresenting with an ovarian mass. Evaluation and correct diagnosis are important to prevent mismanagement