Resolution of right-sided heart failure symptoms after resection of a primary ovarian carcinoid tumor

Carcinoid tumors are rare neuroendocrine malignancies that typically originate from the gastrointestinal tract. Patients who are diagnosed with carcinoid heart disease generally have poor prognoses because of advanced metastases during staging and few therapeutic options. We present the case of a 61-year-old woman with right-sided heart failure, secondary to carcinoid heart disease caused by a primary ovarian carcinoid tumor. After undergoing surgical resection of the left ovary and fallopian tube, the patient experienced complete resolution of her heart failure symptoms. In addition to the patient's case, we discuss the diagnosis, nature, and treatment of this rare condition.