American Journal of Medical Case Reports
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American Journal of Medical Case Reports. 2019, 7(2), 18-21
DOI: 10.12691/ajmcr-7-2-1
Open AccessCase Report

Struma Ovarii, A Rare Ovarian Tumor: Case Report

Walid Mohamed Elnagar1, Mai Mohammed Abdelwahab2 and Mohamed El-Bakry Lashin1,

1Obstetrics and Gynecology Department, Faculty of medicine, Zagazig University, Egypt

2Pathology Department, Faculty of medicine, Zagazig University, Egypt

Pub. Date: February 02, 2019

Cite this paper:
Walid Mohamed Elnagar, Mai Mohammed Abdelwahab and Mohamed El-Bakry Lashin. Struma Ovarii, A Rare Ovarian Tumor: Case Report. American Journal of Medical Case Reports. 2019; 7(2):18-21. doi: 10.12691/ajmcr-7-2-1


Struma ovarii represents a rare type of teratoma that is formed entirely of thyroid tissue. In most cases, these tumors are benign; however, malignant ones have also been reported. It is usually seen between 40 and 60 years and accounts for about 5 % of all cases of ovarian teratomas. Our case was a female patient, 40 years old, who was presented with vaginal bleeding, abdominal swelling and left sided pelvic mass for six months. Clinical examination and imaging techniques showed left ovarian neoplastic lesion and small amount of fluid in Douglas pouch. After laparoscopic excision, Histopathological examination was performed, it showed ovarian tissue, predominantly formed of mature thyroid tissue which are the key features of struma ovarii. In Conclusion: Struma ovarii is a rare ovarian tumor with variable clinical presentations, even can be malignant. Pre-operative diagnosis is usually difficult and confusing, so, it should be put in consideration in differential diagnosis of ovarian masses.

Struma ovarii ovarian tumor thyroid laparoscopy benign

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